The trooper was reporting to duty at the Totowa Barracks in North Jersey and found three men smoking marijuana in the parking lot.
They were waiting on a fourth friend who was inside the state police station.
A search of their car revealed 15 small bags of marijuana and a dozen suspected ecstasy pills.
All four men were charged with drug possession.
They are identified as:
Tamer Abdelrahim, 22, West Paterson
Isaias Parrilla, 22, Paterson
Hensly Nunez, 21, Paterson
Bernardo Cuevas, 23, Paterson (driver)