Breath Testing: What an “INVALID SAMPLE” reading means on a BAC DataMaster

“INVALID SAMPLE” WHAT IT IS AND WHAT IT IS NOT “I was standing by the machine.  It beeped and the officer told me to blow.  I blew and blew.  The officer got really mad and told me that I was messing with the machine.  He said I had to do it again.  The next time I blew again…really hard.  He told me that I was being difficult and told me that he was going to say I was refusing to take the test.  This was horrible.”-Client Testimonial-WHAT AN INVALID SAMPLE IS NOTAfter hearing a story like the one above, the client hands you two pink BAC DataMaster tickets...