[Current status of forensic breath alcohol analysis]

1) As long as the requirements mentioned in the expert opinion of the BGA concerning the analyzers and measuring systems are not fulfilled, the measuring results can only be used as pretest results. At the present time there are not any analyzers available on the world market, which fulfill all requirements! 2) Even if all requirements would be fulfilled, there still arise many doubts concerning the actual probative force of breath alcohol analysis. They are essentially based on inadequate knowledge of physiological and pathological influences. 3) If presuppositions mentioned under 1) and 2) are disregarded, it should be possible to lay down analogic results from the BAK-limits to breathalcohol concentrations, but problems will always appear, if conversions to another time (than the analysis time) or comparisons with BAK-values are to be effected. The dimension and their difficulties for the forensic and legal expert opinion are not yet in sight.