RE:SAY WHAT???????????This is just another way for officers to assess the impairment of an individual using analog type tecniques. They already apply this approach with people they feel may be stoned, before bringing them in for detailed blood work. This is not a real competitor to BLO. BLO has a digital tool that measures a drivers breath/blood level, much more accurate so cops are more confident drivers are impaired before bringing in. Unfortunatley Hound Labs has a similar, less accurate digital tool that does not rely on the multiple BLO patents and gets the job done as far as the cops are concerned.