Deanimator
Member
Funny you should mention that...My take is that the instant you LIE to me and I can see the lie, I must consider everything that you say as a LIE until you can prove to me otherwise. After proving yourself to be a liar, you have to prove everything you say from then out.
I believe it was back in the '90s, that the BATF made a training tape. It was intended to teach BATF (I ABSOLUTELY refuse to call it the ATF) agents how to testify under oath about the NFA record keeping system. The problem was that the film instructed them to in every case state that the records were 100% accurate and reliable... something which the instructor in the tape clearly states IS NOT TRUE. That means that they were actually being taught to commit PERJURY, and AS OFFICIAL POLICY.
Somebody leaked the tape and the Higgins hit the fan. A LOT of convictions were called into question (including one of a friend). Look up the term "Brady Material" http://en.wikipedia.org/wiki/Brady_material in connection with evidence and testimony. The BATF has a well earned history in this regard.
It's not exactly unheard of for cops to lie under oath, but it takes a special degree of contempt for the rule of law to make an official training film on how to do it.