PITTSBURGH -- A police officer suspended without pay after he was charged with bribery, assault and attempted rape could face federal charges.

Related story: Pittsburgh cop facing bribery, assault charges also accused of attempted rape

Channel 11's Alan Jennings reported that legal observers predict that Adam Skweres could face more legal problems after police executed two search warrants of his home and vehicle.

"They were looking for evidence that would corroborate these stories of the victims," said Skweres' attorney, Phil Dilucente.

Jennings' sources said two types of illegal drugs were seized from Skweres truck.

Skweres, 34, had been jailed after his initial arrest Thursday on charges of bribery, coercion, indecent assault, attempted rape and related charges for incidents said to involve four women.