Paso Robles police are seeking help from the public in locating an alleged pimp and human trafficking suspect.

Walter Thomas Jr., 44, was last seen driving a silver Chrysler Pacifica in the Paso Robles area, according to the city’s police department. Police say Thomas may be headed to the Fresno or Clovis area, where he is from. He is currently on probation in Fresno County.

Investigators believe Thomas is the pimp of two women whom they contacted on Tuesday. The women were working as prostitutes in the Paso Robles area, and they are victims of human trafficking, a police department press release states.

Thomas is described as 6 feet tall and 220 pounds with black eyes and brown hair. He reportedly goes by the nickname of Shaky.

Police say they are withholding details to preserve the integrity of the investigation. Anyone who has information about Thomas’s whereabouts is asked to contact Detective Eric Azarvand at (805) 227-7424 or anonymously call Crime Stoppers at (805) 549-STOP.