ZQA297/30
The bus driver, or anyone else would not be quoting a guessed BAC, just that someone maybe smelt of drink, was acting in a way that made him think he had been drinking or maybe had seen someone down a pint....irrespective of that its not his evidence that leads to arrest. If Police are called, and then form the suspicison, based parlty on on the informant has said and partly on what he finds when he arrives, they will then breath test the pilot. The result of that breath test is the direct evidence which lead to the arrest. The bus driver/5 other crew members or anything else is then irrelevent. The Breath test is either pass or fail. Mouthwash will not cause the breath test to be positive if it has been used more than 1/2 hour before the test is administered. I, and most other policemen I know used to ask specificly if someone had used it and if they had waited 1/2 hour before giving the breath test. I think you are relying on urban myth for that one.....
What I said was that the way someone acts, smell (mints being a give away) were all things that could lead to suspcision. At the end of the day, if you have not got a BAC above the presribed limit, you will pass....everyone is then happy.
I have no idea why Goverment fixed the limit at the level they did....I presume on advice from SRG Medical people...
Atlanta-Driver
It is niether the bus driver, nor the other crew members on the bus that make the decision to breath test. The Police officer called to this made that decision. He would have done that based on his findings.
The Pilot was arrested. There are only 3 reaons why that would happen.
1. He failed the screening breath test.
2. He refused to take the breath test
3. He agreed to take it, but then didn't carry it out properly eg, blew round the tube or sucked rather than blew.
So in oder to fail the test, he must have had a BAC above the limit. Or refused to take it, which is his own fault..(but not lightly to have happened from what I gather in this case)
He appears to have apssed the evidencial test conducted at the Police station. Be that breath or blood. The obvious reason being that his BAC was going down and went below the limit between the first and evidencial tests.