The use of 13C NMR spectroscopy in forensic drug analysis.

13C NMR spectroscopy has been used for analysis of fourteen compounds which, according to Swedish laws are defined as narcotic drugs or are substances often found in combination with these drugs. The carbon-13 NMR method seems to be well suited for analysis of complex forensic drug mixtures because no preliminary separation of components is required.

[Textile fibres under the prepuce--criminalistic proof for a sexual assault (author's transl)]. / Textilfasern unter der Vorhaut--kriminaltechnischer Beweis bei einem Sexualverbrechen.

1. One day after a sexual assault the male suspect was investigated by a physician who found yellow textile fibres on his penis. 2. The police secured yellow fibres from the bed-cover, the socks and the panties of the victim. 3. At the laboratory the four kinds of fibres were analyzed. The fibres from the bed and the penis gave identical results by six different methods.

Scuba diving accidents in Sweden 1960--1976.

Thirty "scuba" diving accidents (29 of them fatal) which occurred in Sweden during 1960--76 are listed. Nine of these are described in some detail. The probable causes of these accidents are evaluated, and suggestions for prophylactic measures are made.

Comparative gas chromatographic analysis of narcotics. III. Phenmetrazine hydrochloride.

Chemical signatures of phenmetrazine hydrochloride were studied by gas chromatography. The inter-batch variations of the signatures were found to be large whereas the intra-batch variations were usually small. The method is used for the tracing of seized phenmetrazine hydrochloride samples to common sources, which in turn may permit further tracing back to chains of illicit distribution of this drug. The applicability of the method to other narcotics is also discussed.