From SFGate
DANVILLE — A Contra Costa County sheriff’s deputy told two colleagues he was making “dirty DUI” arrests on behalf of a private investigator who was setting up men to damage their reputations in legal fights, an investigator said in court documents.
Deputy Stephen Tanabe, 47, told a reserve sheriff’s deputy on patrol with him the night of Jan. 14 that a drunken-driving arrest the two were making outside a Danville bar was a “setup” and that the target needed to be “dirtied” for a future court date, a sheriff’s investigator wrote in a search warrant affidavit. …..MORE