Abilene police responded to a call Monday that involved a man who said he was run off the road by someone who was impersonating a public servant and who demanded money.

Police have a suspect and also have some tips to help people identify legitimate law enforcement agents.

"State law requires that emergency lights for law enforcement vehicles be blue and red," Officer George Spindler, with APD said.

Both marked and unmarked vehicles will have the red and blue emergency lights.

"Every public servant contacting citizens here in Abilene are going to behave professionally and with the proper identification. So when in doubt, that is available for the citizen to see," he said. 

Officers, both in uniform and in plain clothes, who conduct a traffic stop will have their badges on them and identify themselves as law enforcement.

Their standard request is that motorists present their drivers license and proof of insurance. Officers will never ask for money.

If you are confronted by someone who does not seem legitimate...

"The best thing that they can do if a motorist feels unsafe about the contact that is occurring, is for them to actually dial 911 and confirm that they are being pulled over by a law enforcement agent," Officer Spindler said.

Impersonating a public servant or police officer is punishable with anywhere from a two year to a lifetime sentence depending on the severity of the offense.