A Coram man is accused of impersonating a police officer, pulling people over and contacting victims after the fact.

David Olivari, 37, allegedly impersonated a police officer on several occasions.

Olivari, a New York state corrections officer, was arrested when attempting to meet up with one of his alleged victims in Commack.

Police say Olivari drove a 2007 Toyota with a flashing light mounted on it and pretended to be a police officer.

Authorities were alerted by a woman who contacted them with the details.

She told police she was stopped on the Long Island Expressway service road around 3 a.m. on Jan. 22. She said Olivari, acting as an officer, took her cellphone and later contacted her requesting nude photographs.

There was a second complaint about Olivari by another woman, who was allegedly pulled over on Jan. 23 in Nesconset.

"He indicated that he stopped them because he believed they were not obeying the speed limit, and that they were texting or using the cell phone," says Detective Lt. Michael Crowley.

Olivari plead not guilty to several charges including criminal impersonation, grand larceny, unlawful imprisonment and unauthorized use of a computer at his arraignment in Central Islip.

Police Commissioner Rodney Harrison says anyone who feels uncomfortable being pulled over by an unmarked vehicle should get the person's name, information and shield number and then reach out to 911 and request a marked vehicle to respond to the location.

Anyone with information or who believes to have been a victim can call police at 1-800-220-TIPS.