Samenvatting
The analysis of breath alcohol for traffic law enforcement purposes is well documented. In Great Britain the Transport Act 1981 introduced a breath alcohol limit of 350mcg /lit (actually 35ug/100ml) and so allowed the use of evidential breath instruments, and particularly the Lion Intoximeter 3000. Under this Act the subject must provide two breath samples for analysis, the lower of which is used evidentially. A regular defence has been that the readings were elevated through mouth alcohol. The need to investigate such claims has caused to research this subject from a new angle.