Suge Knight -- Cops Find No Junk in His Trunk

Suge Knight once again felt the cold plastic of a squad car's back seat this AM while cops rifled through his car.

Law enforcement sources tell TMZ Suge was pulled over in L.A. around 3 AM for a traffic violation -- but it got more serious when cops discovered Suge was driving on a suspended license.

The cops put Suge in the squad car while officers searched the car, but found nothing (check out the video).  Suge was allowed to leave -- but only as a passenger in his vehicle.  And Suge got a parting gift -- a ticket for driving on a suspended license.