MILFORD, Conn. -- Milford police said a man with a flashing blue light in his car wasn't trying to pull anyone over, he wanted the driver ahead of him to slow down.

Volunteer firefighters in Connecticut can get permits to have flashing blue lights to get people ahead of them to pull over while they're on the way to an emergency.

However, they're not supposed to speed or break any traffic laws, and they're not something just anyone can use.

Just before midnight, a Milford police sergeant said he was driving his personal car to work on the Merritt Parkway when someone came up behind him with flashing blue lights and high beams on. He said the person was going about 70 to 80 mph.

Thinking it may have been a volunteer firefighter going to a call, he said he pulled to the right and let the vehicle pass, but because of the vehicle's speed, he became concerned.

The sergeant said he decided he would call the person to find out what was going on, which is when he realized it wasn't a volunteer firefighter. It turned out to be 19-year-old David Ragozzine, of Woodbridge.

Ragozzine told the sergeant he uses the lights because he often stops on the road and helps people.

But what happened Sunday night was different, according to the sergeant.

"The individual stated that he saw somebody driving fast so he thought that by turning some lights on it would slow that individual down," Officer Vaughn Dumas said.

Ragozzine was arrested for illegal use of a flashing blue light and unauthorized use of flashing high beams.

Police said he wasn't charged with impersonating a police officer because, to the department's knowledge, he never identified himself as an officer or pulled anybody over.