Abstract
Whether a punishable excess of alcohol in an individual should apply only to blood alcohol content or alternatively and preferably to breath alcohol content is a much considered question in many countries. This is partly due to the introduction of microprocessor techniques in breath analysis, by which a number of objections against the breath test are removed. The breath test can only function as proof in alcohol-related traffic cases if, besides a maximum blood alcohol content, a breath alcohol limit is also introduced in the law. These questions are discussed in relation to the dutch legal situation.