Vancouver police are looking for witnesses in connection with a prostitution case they've been investigating for the past two years.

Marek James Anisimowicz, 33, who also goes by 'Sal,' has been charged with 19 counts including living off the avails of prostitution, uttering threats and assault with a weapon.

"We're fairly confident that there are witnesses out there with information about this person," said Vancouver police Const. Brian Montague.

"We're also fairly confident that there's at least one, if not more, victims out there that have not come forward to police yet."

Anisimowicz was arrested in early July and remains in police custody. He is scheduled to appear in court on Sept. 19.

Police won't say anything more about the case as the investigation is ongoing and a publication ban is in place to protect the victims.