I know that urban legend has it that several branches of government and law enforcement had turbobricks, but the only one that I know of that is documented and shows previous registration to any city, county, state, or federal use is something like 7 were ordered by either the state of kali or the city of San Francisco and one shows previous documentation to the City of San Francisco Kali pops up for sale every so often on TB.COM. Last saw the ad maybe about 1 year ago for sale up in I believe Nor Kal. Supposedly had verification of documentation and the infamous sticker on the dash glass lens.
Might want to do a search. HTH