Indiana State Police are seeking the public's help after a man posing as a police officer stopped a woman Sunday night on Interstate 65 and took off with her driver's license.

A 46-year-old woman told authorities she was driving south on Interstate 65 around 5:50 p.m. Sunday just north of the 109th Street Crown Point exit when a black SUV pulled her over using red and blue lights on the dashboard.

A man wearing a dark battle dress uniform with no identifying patches and possibly a bulletproof vest under his shirt approached the woman's driver's side window and told her she was driving too fast.

The woman handed the man her driver's license and he went back to his vehicle, sat for about 30 seconds then drove off. The woman told police the man did not identify himself and she was unable to get his license plate information.

She called her husband then they called Indiana State Police.

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The vehicle the man was driving was possibly a newer Ford Explorer. The man was described as white, around 50 years old with grayish hair, a medium build and clean shaven.

Indiana State Police said state law prohibits officers not wearing official uniforms to make a traffic stop in unmarked vehicles. Officers can make traffic stops in civilian clothes only if driving a fully marked police vehicle, state police said.

In an effort to prevent others from being victimized by a police impersonator, authorities urged drivers to only stop in well lit and heavily populated areas, only roll down the windows an inch or two to communicate well, ask for the officer's identification, remain in the vehicle and call 911 to provide the location and the license plate of the suspicious person.

Police are asking anyone who was in the area of the Sunday incident and may have witnessed the traffic stop to contact Indiana State Police Trooper Danielle Elwood at (219) 696-6242.

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