personal B.A.C readers

I wasw at the pub lst night and found out that a mate of mine's daughter was done for DUI last weekend. The girl is only 17 and has had her licence for only a couple of months. Stuipidity of youth.... Not quite. She was the duty driver for a group of friends at a party, being the only one underage she does it a lot, and while there some low-life spiked the O.J. Not only did the w*&ker put her life at risk but also the lives of all her friends and the lifes of anyother road user. She had taken the bottle of O.J there herself and marked it so no-one could confuse it. . Now she has been told that she will have to go to court and will lose her licence and cop a fine. A sh*t call for a girl who is about to start uni and wants to be a cop when she graduates. Appartently the police are looking into it all.

Now my question is does anyone have anything to say about the personalized breathlizer you can get. Is calibration a issue etc.. I reckon one of these in everyones car could save alot of heartache.