I absolutely hate liars, especially when they wear a badge! As a retired LEO I would suggest that you contact the Chief of Enforcement, or whoever the top dog is, and advise them that you are aware of the Federal requirement that "they" must keep an abridged file of all enforcement officer's who have been proven to be liars either by discredited court testimony or as a result of an internal investigation. Most folks don't know about this little ditty, in fact, most enforcement organizations don't as well. Of course the larger PD's and state enforcement folks usually know. Follow up and get it in writing.