Examining the impact of legalization on the prevalence of driving after using cannabis: A comparison of rural and non-rural parts of Canada.

OBJECTIVE: The purpose of this study was to examine the likelihood of driving after using cannabis, and of being a passenger with someone who is driving after using cannabis, in rural areas and non-rural areas before and after legalization. METHODS: A multi-wave analysis of Canada's National Cannabis Survey was conducted using logistic regression with interactions to predict the prevalence of driving after using cannabis, and of being a passenger with someone who is driving after using cannabis, in relation to place of residence (rural or non-rural) and in the weeks and months before and after legalization. Three time points were compared: pre-legalization, two months following legalization and 1 year after legalization. RESULTS: At the national level, there are no significant differences between the predicted estimates of driving after using cannabis for those who live in rural and non-rural areas. However, when examining the impact of legalization, we found a significant increase in driving after using cannabis among rural residents directly following legalization. Furthermore, it was observed that this increase in driving after using cannabis returns to pre-legalization rates one year after legalization. By contrast, in the weeks and months following legalization, driving after using cannabis decreased among those living in non-rural areas, and slowly increased soon thereafter. No significant differences were observed, in either time period or group, in the prevalence of being a passenger with someone who is driving after using cannabis. CONCLUSIONS: The finding of significantly higher risk of driving after use of cannabis soon after legalization in rural areas suggests a need for more attention to address immediate concerns for public safety. The increased potential for traffic injuries and deaths in other jurisdictions contemplating legalization supports the call for more and better targeted prevention efforts in rural communities that have far too often been overlooked and under-served.

Canada's cannabis legalization and adult crime patterns, 2015-2021: A time series study.

BACKGROUND AND AIM: A central goal of the Cannabis Act (October 17, 2018) - Canada's national cannabis legalization framework - aimed to reduce cannabis-related criminalization and consequent impact on the Canadian criminal justice system. We assessed whether Canada's cannabis legalization was associated with changes in adult police-reported cannabis-related, property, or violent criminal incidents. DESIGN: Seasonal Autoregressive Integrated Moving Average (SARIMA) time series models evaluated relations between legalization and adult cannabis-related, property, and violent crimes, using criminal incident data from the Canadian Uniform Crime Reporting Survey (UCR-2; January 1, 2015-December 31, 2021). PRIMARY SAMPLE: National police-reported adult cannabis-related offenses (n = 247,249), property crimes (n = 2,299,777), and violent crimes (n = 1,903,762). FINDINGS: Implementation of the Cannabis Act was associated with decreases in adult police-reported cannabis-related offenses: females, -13.2 daily incidents (95% CI, -16.4; -10.1; p < 0.001) - a reduction of 73.9% [standard error (se), 30.6%]; males, -69.4 daily offenses (95% CI, -81.5; -57.2; p < 0.001) - a drop of 83.2% (se, 21.2%). Legalization was not associated with significant changes in the adult property-crime or violent-crime series. CONCLUSIONS: Our findings suggest that Canada's cannabis legalization was successful in reducing cannabis-related criminalization among adults. There was also a lack of evidence for spillover effects of cannabis legalization on adult property or violent crimes.

Canada's cannabis legalization and police-reported cannabis-related criminal incidents among youth, 2015-2021.

BACKGROUND: We previously reported that the 2018 Canadian Cannabis Act, allowing youth to possess up to 5 g dried cannabis or equivalent for personal use/sharing, was associated with short-term (76 days) post-legalization reduction in police-reported cannabis-related crimes among youth. To establish whether the change might be sustained, we now estimate this association during a much longer time period by including an additional three years of post-legalization data. METHODS: Using national daily police-reported criminal incident data from January 1, 2015-December 31, 2021 from the Canadian Uniform Crime Reporting Survey (UCR-2), the study employed Seasonal Autoregressive Integrated Moving Average (SARIMA) time series models to assess the associations between legalization and youth (12-17 years) cannabis-related offenses (male, n = 34,508; female, n = 9529). RESULTS: Legalization was associated with significant reductions in both male and female police-reported cannabis-related offenses: females, 4.04 daily incidents [95% confidence interval (CI), 3.08; 5.01], a 62.1% decrease [standard error (se), 34.3%]; males, 12.42 daily offenses (95% CI, 8.99; 15.86), a reduction of 53.0% (se, 22.7%). There was no evidence of associations between cannabis legalization and patterns of property or violent crimes. CONCLUSIONS: Results suggest that the impact of the Cannabis Act on reducing cannabis-related youth crimes is sustained, supporting the Act's objectives to reduce cannabis-related criminalization among youth and associated effects on the Canadian criminal justice system.

Impacts of Canada's cannabis legalization on police-reported crime among youth: early evidence.

AIMS: Canada's 2018 Cannabis Act allows youth (age 12-17 years) to possess up to 5 g of dried cannabis (or equivalent) for personal consumption/sharing. This study assessed whether the Cannabis Act was associated with changes in police-reported cannabis offences among youth in Canada. DESIGN: Time series model using national daily criminal incident data from January 1, 2015-December 31, 2018 from the Canadian Uniform Crime Reporting Survey (UCR-2). Seasonal autoregressive integrated moving average time series models, stratified by sex, assessed the relations between legalization and youth cannabis-related offences. SETTING: Canada, 2015-2018. CASES: Police-reported cannabis-related offenses among youth age 12-17 years (male, n = 32 178; female, n = 9001). MEASUREMENTS: Outcomes: police-reported cannabis-related crimes, property crimes, and violent crimes. Covariate: calendar-month. FINDINGS: For females, legalization was associated with a step-effect decrease of 4.56 (95% confidence interval [CI] = 3.32, 5.81; P < 0.001) police-reported cannabis-related criminal offences per day, an effect equivalent to a 64.6% (standard error [SE] = 33.5%) reduction. For males, legalization was associated with a drop of 12.73 (95% CI = 8.82, 16.64; P < 0.001) cannabis-related offences per day, equaling a decrease of 57.7% (SE = 22.6%). Results were inconclusive as to whether there were associations between cannabis legalization and patterns of property crimes or violent crimes. CONCLUSIONS: Implementation of the Cannabis Act in Canada in 2018 appears to have been associated with decreases of 55%-65% in cannabis-related crimes among male and female youth.

Public support for harm reduction: A population survey of Canadian adults.

We described public views toward harm reduction among Canadian adults and tested a social exposure model predicting support for these contentious services, drawing on theories in the morality policy, intergroup relations, addiction, and media communication literatures. A quota sample of 4645 adults (18+ years), randomly drawn from an online research panel and stratified to match age and sex distributions of adults within and across Canadian provinces, was recruited in June 2018. Participants completed survey items assessing support for harm reduction for people who use drugs (PWUD) and for seven harm reduction interventions. Additional items assessed exposure to media coverage on harm reduction, and scales assessing stigma toward PWUD (α = .72), personal familiarity with PWUD (α = .84), and disease model beliefs about addiction (α = .79). Most (64%) Canadians supported harm reduction (provincial estimates = 60% - 73%). Five of seven interventions received majority support, including: outreach (79%), naloxone (72%), drug checking (70%), needle distribution (60%) and supervised drug consumption (55%). Low-threshold opioid agonist treatment and safe inhalation interventions received less support (49% and 44%). Our social exposure model, adjusted for respondent sex, household income, political views, and education, exhibited good fit and accounted for 17% of variance in public support for harm reduction. Personal familiarity with PWUD and disease model beliefs about addiction were directly associated with support (ßs = .07 and -0.10, respectively), and indirectly influenced public support via stigmatized attitudes toward PWUD (ßs = 0.01 and -0.01, respectively). Strategies to increase support for harm reduction could problematize certain disease model beliefs (e.g., "There are only two possibilities for an alcoholic or drug addict-permanent abstinence or death") and creating opportunities to reduce social distance between PWUD, the public, and policy makers.

Media coverage of harm reduction, 2000-2016: A content analysis of tone, topics, and interventions in Canadian print news.

BACKGROUND: Harm reduction interventions reduce mortality and morbidity for people who use drugs (PWUD), but are contentious and haphazardly implemented. This study describes volume and content of Canadian newspaper coverage of harm reduction produced from 2000 to 2016. METHODS: Searches of 54 English-language newspapers identified 5681 texts, coded for type (news reports, opinion pieces), tone (positive, negative, or neutral/balanced coverage), topic (health, crime, social welfare, and political perspectives on harm reduction), and seven harm reduction interventions. RESULTS: Volume of coverage doubled in 2008 (after removal of harm reduction from federal drug policy and legal challenges to Vancouver's supervised consumption program) and quadrupled in 2016 (tracking Canada's opioid emergency). Health perspectives on harm reduction were most common (39% of texts) while criminal perspectives were rare (3%). Negative coverage was over 10 times more common in opinion pieces (31%) compared to news reports (3%); this trend was more pronounced in British Columbia and Alberta, a region particularly affected by Canada's opioid emergency. Supervised drug consumption accounted for 49% of all newspaper coverage. CONCLUSIONS: Although federal policy support for harm reduction waxed and waned over 17 years, Canadian newspapers independently shaped public discourse, frequently characterizing harm reduction positively/neutrally and from a health perspective. However, issue framing and agenda setting was also evident: supervised drug consumption offered in a single Canadian city crowded out coverage of all other harm reduction services, except for naloxone. This narrow sense of 'newsworthiness' obscured public discourse on the full spectrum of evidence-based harm reduction services that could benefit PWUD.

Principles, practice, and policy vacuums: Policy actor views on provincial/territorial harm reduction policy in Canada.

INTRODUCTION: Canada is experiencing a new era of harm reduction policymaking and investment. While many provinces and territories are expanding access to these services, harm reduction policy and policymaking varies across the country. The present study, part of the Canadian Harm Reduction Policy Project (CHARPP), described policy actors' views on formal harm reduction policies in Canada's 13 provinces and territories. METHODS: As part of CHARPP's mixed-method, multiple case study, we conducted qualitative interviews with 75 policy actors, including government officials, health system leaders, senior staff at community organizations, and advocates with self-identified lived experience of using drugs. Interviews were conducted in English or French, and recorded and transcribed verbatim. We used latent content analysis to inductively code the data and generate main findings. NVivo 11 was used to organize the transcripts. RESULTS: Participants expressed divergent views on formal provincial/territorial policies and their impact on availability of harm reduction programs and services. While some identified a need to develop new policies or improve existing ones, others resisted bureaucratization of harm reduction or felt the absence of formal policy was instead, advantageous. Instances where harm reduction was advanced outside of formal policymaking were also described. DISCUSSION: Previous CHARPP research documented wide variability in quantity and quality of formal harm reduction policies across Canada, and characterized official policy documents as serving largely rhetorical rather than instrumental functions. The present findings highlight diverse ways that actors used their discretion to navigate these weak policy contexts. Participants' views and experiences sometimes referred to strengthening policy support, but institutionalization of harm reduction was also resisted or rejected. Results suggest that actors adopt a range of pragmatic strategies to advance harm reduction services in response to policy vacuums characteristic of morality policy domains, and challenge assumptions about the utility of formal policies for advancing harm reduction.

Differentiating the Drug Normalization Framework: A Quantitative Assessment of Cannabis Use Patterns, Accessibility, and Acceptability Attitudes among University Undergraduates.

BACKGROUND/OBJECTIVES: The drug normalization framework investigates the social integration of substance use. This article contributes a quantitative assessment of cannabis normalization as differentiated by social location predictors. METHODS: Logistic and zero-inflated negative binomial regression models assess three areas of cannabis normalization: accessibility, acceptability, and recent use. Peer network cannabis use prevalence, gender, nativity, campus locale and living arrangement are explored as focal predictors of variation in normalization among 1,713 cannabis using and nonusing undergraduate students in Canada. RESULTS: Women report lower odds of positive cannabis acceptability attitudes. While women report lower rates of recent cannabis use, gender is not a significant predictor for lifetime prevalence. Being a recent immigrant significantly predicts lower recent use, lower odds of favorable attitudes to cannabis, and reduced accessibility in comparison to students born in Canada. Longer-term immigrants do not show significant differences from students born in Canada on accessibility and acceptability, suggesting a substance use acculturation effect. Lower peer cannabis use prevalence exhibits a protective effect against use. In comparison to students who report that "some" of their peer network uses cannabis, those with "all" users in their network exhibit lower acceptability attitudes. This suggests a threshold relationship between peer use prevalence and acceptability. Conclusions/Importance: This article provides a data point for assessing future shifts in cannabis normalization prior to impending changes in Canadian drug policy that will legalize recreational cannabis use. Results show that normalization components of recent use, acceptability, and accessibility are differentiated by gender, nativity, and peer network cannabis use prevalence.

The burgeoning recognition and accommodation of the social supply of drugs in international criminal justice systems: An eleven-nation comparative overview.

BACKGROUND: It is now commonly accepted that there exists a form of drug supply, that involves the non-commercial supply of drugs to friends and acquaintances for little or no profit, which is qualitatively different from profit motivated 'drug dealing proper'. 'Social supply', as it has become known, has a strong conceptual footprint in the United Kingdom, shaped by empirical research, policy discussion and its accommodation in legal frameworks. Though scholarship has emerged in a number of contexts outside the UK, the extent to which social supply has developed as an internationally recognised concept in criminal justice contexts is still unclear. METHODS: Drawing on an established international social supply research network across eleven nations, this paper provides the first assessment of social supply as an internationally relevant concept. Data derives from individual and team research stemming from Australia, Belgium, Canada, Czech Republic, Finland, Germany, Hong Kong, the Netherlands, England and Wales, and the United States, supported by expert reflection on research evidence and analysis of sentencing and media reporting in each context. In situ social supply experts addressed a common set of questions regarding the nature of social supply for their particular context including: an overview of social supply research activity, reflection on the extent that differentiation is accommodated in drug supply sentencing frameworks; evaluating the extent to which social supply is recognised in legal discourse and in sentencing practices and more broadly by e.g. criminal justice professionals in the public sphere. A thematic analysis of these scripts was undertaken and emergent themes were developed. Whilst having an absence of local research, New Zealand is also included in the analysis as there exists a genuine discursive presence of social supply in the drug control and sentencing policy contexts in that country. RESULTS: Findings suggest that while social supply has been found to exist as a real and distinct behaviour, its acceptance and application in criminal justice systems ranges from explicit through to implicit. In the absence of dedicated guiding frameworks, strong use is made of discretion and mitigating circumstances in attempts to acknowledge supply differentiation. In some jurisdictions, there is no accommodation of social supply, and while aggravating factors can be applied to differentiate more serious offences, social suppliers remain subject to arbitrary deterrent sentencing apparatus. CONCLUSION: Due to the shifting sands of politics, mood, or geographical disparity, reliance on judicial discretion and the use of mitigating circumstances to implement commensurate sentences for social suppliers is no longer sufficient. Further research is required to strengthen the conceptual presence of social supply in policy and practice as a behaviour that extends beyond cannabis and is relevant to users of all drugs. Research informed guidelines and/or specific sentencing provisions for social suppliers would provide fewer possibilities for inconsistency and promote more proportionate outcomes for this fast-growing group.

On the Usefulness of Narratives: An Interdisciplinary Review and Theoretical Model.

Background: How can we use stories from other people to promote better health experiences, improve judgments about health, and increase the quality of medical decisions without introducing bias, systematically persuading the listeners to change their attitudes, or altering behaviors in nonoptimal ways? More practically, should narratives be used in health education, promotion, or behavior change interventions? Method: In this article, we address these questions by conducting a narrative review of a diverse body of literature on narratives from several disciplines to gain a better understanding about what narratives do, including their role in communication, engagement, recall, persuasion, and health behavior change. We also review broad theories about information processing and persuasion from psychology and more specific models about narrative messaging found in the health communication and marketing literatures to provide insight into the processes by which narratives have their effect on health behavior. Results: To address major gaps in our theoretical understanding about how narratives work and what effects they will have on health behavior, we propose the Narrative Immersion Model, whose goal is to identify the parameters that predict the specific impact of a particular narrative (e.g. persuade, inform, comfort, etc.) based on the type of narrative message (e.g. process, experience, or outcome narrative). Further, the Narrative Immersion Model describes the magnitude of the effect as increasing through successive layers of engagement with the narrative: interest, identification, and immersion. Finally, the Narrative Immersion Model identifies characteristics of the narrative intervention that encourage greater immersion within a given narrative. Conclusions: We believe there are important communication gaps in areas areas of behavioral medicine that could be addressed with narratives; however, more work is needed in order to employ narrative messaging systematically. The Narrative Immersion Model advances our theoretical understanding about narrative processing and its subsequent effects on knowledge, attitudes, and behavior.

Harm reduction in name, but not substance: a comparative analysis of current Canadian provincial and territorial policy frameworks.

BACKGROUND: In Canada, funding, administration, and delivery of health services-including those targeting people who use drugs-are primarily the responsibility of the provinces and territories. Access to harm reduction services varies across jurisdictions, possibly reflecting differences in provincial and territorial policy commitments. We examined the quality of current provincial and territorial harm reduction policies in Canada, relative to how well official documents reflect internationally recognized principles and attributes of a harm reduction approach. METHODS: We employed an iterative search and screening process to generate a corpus of 54 provincial and territorial harm reduction policy documents that were current to the end of 2015. Documents were content-analyzed using a deductive coding framework comprised of 17 indicators that assessed the quality of policies relative to how well they described key population and program aspects of a harm reduction approach. RESULTS: Only two jurisdictions had current provincial-level, stand-alone harm reduction policies; all other documents were focused on either substance use, addiction and/or mental health, or sexually transmitted and/or blood-borne infections. Policies rarely named specific harm reduction interventions and more frequently referred to generic harm reduction programs or services. Only one document met all 17 indicators. Very few documents acknowledged that stigma and discrimination are issues faced by people who use drugs, that not all substance use is problematic, or that people who use drugs are legitimate participants in policymaking. A minority of documents recognized that abstaining from substance use is not required to receive services. Just over a quarter addressed the risk of drug overdose, and even fewer acknowledged the need to apply harm reduction approaches to an array of drugs and modes of use. CONCLUSIONS: Current provincial and territorial policies offer few robust characterizations of harm reduction or go beyond rhetorical or generic support for the approach. By endorsing harm reduction in name, but not in substance, provincial and territorial policies may communicate to diverse stakeholders a general lack of support for key aspects of the approach, potentially challenging efforts to expand harm reduction services.

Canadian harm reduction policies: A comparative content analysis of provincial and territorial documents, 2000-2015.

BACKGROUND: Access to harm reduction interventions among substance users across Canada is highly variable, and largely within the policy jurisdiction of the provinces and territories. This study systematically described variation in policy frameworks guiding harm reduction services among Canadian provinces and territories as part of the first national multimethod case study of harm reduction policy. METHODS: Systematic and purposive searches identified publicly-accessible policy texts guiding planning and organization of one or more of seven targeted harm reduction services: needle distribution, naloxone, supervised injection/consumption, low-threshold opioid substitution (or maintenance) treatment, buprenorphine/naloxone (suboxone), drug checking, and safer inhalation kits. A corpus of 101 documents written or commissioned by provincial/territorial governments or their regional health authorities from 2000 to 2015 were identified and verified for relevance by a National Reference Committee. Texts were content analyzed using an a priori governance framework assessing managerial roles and functions, structures, interventions endorsed, client characteristics, and environmental variables. RESULTS: Nationally, few (12%) of the documents were written to expressly guide harm reduction services or resources as their primary named purpose; most documents included harm reduction as a component of broader addiction and/or mental health strategies (43%) or blood-borne pathogen strategies (43%). Most documents (72%) identified roles and responsibilities of health service providers, but fewer declared how services would be funded (56%), specified a policy timeline (38%), referenced supporting legislation (26%), or received endorsement from elected members of government (16%). Nonspecific references to 'harm reduction' appeared an average of 12.8 times per document-far more frequently than references to specific harm reduction interventions (needle distribution=4.6 times/document; supervised injection service=1.4 times/document). Low-threshold opioid substitution, safer inhalation kits, drug checking, and buprenorphine/naloxone were virtually unmentioned. Two cases (Quebec and BC) produced about half of all policy documents, while 6 cases - covering parts of Atlantic and Northern Canada - each produced three or fewer. CONCLUSION: Canada exhibited wide regional variation in policies guiding the planning and organization of Canadian harm reduction services, with some areas of the country producing few or no policies. Despite a wealth of effectiveness and health economic research demonstrating the value of specific harm reduction interventions, policies guiding Canada from 2000 to 2015 did not stake out harm reduction interventions as a distinct, legitimate health service domain.

Identity Formation, Marijuana and "The Self": A Study of Cannabis Normalization among University Students.

Over the past half-century, as use of marijuana has become more widespread in Canadian society, there are indications of a normalizing process in societal reactions and experiences of use. Among other research avenues, these trends suggest a need for further exploration of young people's understandings of how they make the choice to use or not and how decisions relate to presentation of the self. This study draws on interviews with 30 undergraduates recruited from a larger online survey of respondents at the University of Guelph, ON, Canada. In probing their perceptions of the use of marijuana, we often found that trying/using "pot" was the default option, whereas choosing not to use required more conscious effort. With specific reference to Goffman's contribution to a situated understanding of the self, our findings are interpreted with emphasis on further theoretical development of the normalization thesis and on the role of marijuana in identity formation among persons in the process of transition to adulthood.

Whither RDS? An investigation of Respondent Driven Sampling as a method of recruiting mainstream marijuana users.

BACKGROUND: An important challenge in conducting social research of specific relevance to harm reduction programs is locating hidden populations of consumers of substances like cannabis who typically report few adverse or unwanted consequences of their use. Much of the deviant, pathologized perception of drug users is historically derived from, and empirically supported, by a research emphasis on gaining ready access to users in drug treatment or in prison populations with higher incidence of problems of dependence and misuse. Because they are less visible, responsible recreational users of illicit drugs have been more difficult to study. METHODS: This article investigates Respondent Driven Sampling (RDS) as a method of recruiting experienced marijuana users representative of users in the general population. Based on sampling conducted in a multi-city study (Halifax, Montreal, Toronto, and Vancouver), and compared to samples gathered using other research methods, we assess the strengths and weaknesses of RDS recruitment as a means of gaining access to illicit substance users who experience few harmful consequences of their use. Demographic characteristics of the sample in Toronto are compared with those of users in a recent household survey and a pilot study of Toronto where the latter utilized nonrandom self-selection of respondents. RESULTS: A modified approach to RDS was necessary to attain the target sample size in all four cities (i.e., 40 'users' from each site). The final sample in Toronto was largely similar, however, to marijuana users in a random household survey that was carried out in the same city. Whereas well-educated, married, whites and females in the survey were all somewhat overrepresented, the two samples, overall, were more alike than different with respect to economic status and employment. Furthermore, comparison with a self-selected sample suggests that (even modified) RDS recruitment is a cost-effective way of gathering respondents who are more representative of users in the general population than nonrandom methods of recruitment ordinarily produce. CONCLUSIONS: Research on marijuana use, and other forms of drug use hidden in the general population of adults, is important for informing and extending harm reduction beyond its current emphasis on 'at-risk' populations. Expanding harm reduction in a normalizing context, through innovative research on users often overlooked, further challenges assumptions about reducing harm through prohibition of drug use and urges consideration of alternative policies such as decriminalization and legal regulation.

Normalization and harm reduction: research avenues and policy agendas.

An affinity between the evidence and arguments for drug normalization and the policy and programme directions favoured by harm reduction is often assumed but seldom critically examined. This commentary looks at parallels and contradictions emerging with respect to different cultures, social settings, types of problems and responses where the match is less than perfect. Mounting evidence of normalization has also led to backlash in some countries and the mobilization of forces reaffirming prohibition. We call for further research on normalization that focuses on substance use, risks, harms, and social context across a broader spectrum of the population, and in a variety of cultures. By emphasizing the most serious harms experienced by persons in the smallest segments of drug using populations, harm reduction often has neglected broader research and policy suggestions that might be implemented to benefit controlled, recreational drug users. Future policy development with respect to normalization will require more research and more serious discussion of its implications for informing the transition toward a global public health approach to substance use.

Harm reduction headway and continuing resistance: insights from safe injection in the city of Vancouver.

North America's first official safe injection facility has begun to generate substantial evidence attesting to the harm reduction benefits of supervised injection. Reductions in morbidity, mortality, and crime rates have strengthened the resolve of local advocates and even influenced the views of some original detractors. Many status quo defenders are unwavering, however, in their condemnation of initiatives like InSite. The term 'drug den' has been used in right-wing media and some opponents of the programme say the evidence is biased. In their view, harm reduction advocates are really 'legalisers' in the guise of scientists and public health professionals. Providing services for people with drug problems sends the message that some use of drugs is normal, rather than affirming that drug use is the problem. Abstinence, prevention, and enforcement are the only acceptable and morally legitimate solutions. Harm reduction's muted stance on morals, rights and values prevents proponents from engaging criticisms of this nature in terms other than the evidence or science. The case of InSite in Vancouver, however, the authors argue, demonstrates the value of asserting human rights claims that do not rest on evidence per se. Scientific arguments are insufficient in themselves to move beyond the status quo on drugs. Rights-based moral warrants in support of harm reduction require far more extensive and explicit cultivation if they are to be discursively established and maintained.

Injury risk associated with cannabis and cocaine use.

The purpose of this paper is to review the results and limitations of studies of injury risks associated with cannabis and cocaine use. Three types of fatal and non-fatal injuries are considered: injuries due to collisions, intentional injuries and injuries in general. Four types of studies were reviewed: (I) laboratory studies, (II) descriptive and analytic epidemiological studies on the prevalence of cannabis or cocaine use through drug testing of those injured, (III) studies of non-clinical samples, and (IV) studies of clinical samples of drug users. The research that utilized drug tests showed similar proportions testing positive for cannabis in fatal and non-fatal injury groups, and for collisions, violence and injuries in general. By contrast, large differences in the average proportions testing positive for cocaine were found among these same injury groups. For example, 28.7% of people with intentional injuries (primarily homicides) tested positive for cocaine, while 4.5% of injured drivers tested positive. Studies of non-clinical samples have shown that both cannabis and cocaine use are related to intentional injuries and injuries in general. Results indicate higher risk for all types of injuries among cannabis and cocaine clients in treatment. Strengths and limitations of the different types of studies are discussed. More rigorous studies are needed which should focus on ruling out alternative explanations for relationships between drug use and injuries.

From harm reduction to human rights: bringing liberalism back into drug reform debates.

This Harm Reduction Digest marks a return to theoretical discussions about harm reduction. Andrew Hathaway notes that harm reduction seldom articulates or acknowledges the moral foundation on which it might build to affect meaningful changes in policy. He argues that despite the rhetorical strengths of empiricism, an openly liberal, human rights orientation imbues rational argument with the principles needed to sustain pragmatic drug reform solutions. Liberalism, with its norms of social tolerance and respect for civil liberties, is presented here as key to the future development of harm reduction discourse as a way of advancing human rights themes in contemporary drug policy debates.