The county Drug Task Force arrested three suspects Tuesday night in the 2900 block of Pine Grove Avenue in Port Huron. Officers said they seized $500 worth of crack cocaine and $50 worth of heroin. A 39-year-old Detroit man, a 21-year-old Port Huron woman and a 30-year-old Harbor Beach woman were arrested. The Detroit suspect is familiar to officers, who said it was the third time this year he has been picked up on various drug-related charges.