Posted: 12:26 PM, September 14, 2010

Talk about good cop bad cop.

A Long Island family man with a twisted law enforcement fetish was arrested for impersonating a federal agent early Monday morning after he pulled over an off-duty Suffolk County officer.

Victor Alfaro-Marquez, 35, of Selden, pulled up behind Detective William Zambito at 4:30 a.m. in a black 1999 Mercedes SUV and activated a set of red and blue lights on his dashboard and flashed his headlights.

After the veteran detective pulled over, Alfaro-Marquez approached his driver's side window wearing a black t-shirt and a replica DEA badge around his neck.

The suspicious cop immediately identified himself as a police officer. "He was very suspicious right off the bat," Suffolk County Det. Lt. Matt Sullivan of his colleague.

"He asked my guy if he was NYPD," he said. "My guy said no, I'm a Suffolk detective and the guy said he was DEA and quickly got back into his car and left."

But Zambito took down the fake fed's license plate and he was arrested without incident at his home at 8:30 p.m. Monday night.

Cops found a trove of law enforcement related paraphernalia in the impounded Mercedes, including two badges, a pellet pistol in a holster, handcuffs, and a DEA baseball hat. "He was definitely some sort of buff," Sullivan said.

Other than a prior arrest for having a phony driver's license, Alfaro-Marquez, who is married with children and runs an import export business, has no prior criminal record.

Suffolk cops are still investigating whether Alfaro-Marquez pulled the same stunt on unsuspecting drivers in the past.