We had a classified courier card that was a freaking get out of jail pass for any agency. Have to see if I can find a pic of one. One fool used it when he got pulled over for a DUI, shows it to the cops, the escort him to the main pear larbor gate, call his OIC up at 0300 or so and he said if it was not official duty it was null and void. Bet he is still in Levenworth, thats a ton of broken rules there on both sides. Cant find one basically said you must not detain this person in any way, weapons authorized and any US agency must assist if requested. Serious ID there.