Stopping the flow of stolen used cooking oil to the lucrative black market: Manorville private investigator talks about his curious niche riverheadlocal.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from riverheadlocal.com Daily Mail and Mail on Sunday newspapers.
Thieves have been stealing used cooking oil from national chains and family-owned restaurants. Some masquerade as contracted haulers. Some are former employees of those haulers. Some wear phony uniforms and carry forged pickup lists.