Medicolegal alcohol determination: Widmark revisited.

Several concepts and principles advanced by Widmark over 50 years ago are briefly compared with results of recently published experimental work. His conclusions--that breath alcohol analysis can lead to overestimates of actual blood alcohol concentration, and that +/- 2 standard deviations about the average should be used to estimate certain pharmacokinetic parameters for medicolegal alcohol determinations--are supported by these more-recent experimental results.