Westport police held a traffic stop practice session for drivers with autism on Saturday at Sacred Heart University.

The session, presented by Southern Connecticut State University's Center of Excellence on Autism Spectrum Disorders, allowed people to engage with officers and familiarize themselves with what happens at a traffic stop.

It also gave police the opportunity to learn about Connecticut's Blue Envelope program. According to the Department of Motor Vehicles:

"The purpose of the envelope is to have the driver place their insurance card, registration and driver license in it, so they can hand it to the officer during a traffic stop. On the outside of the envelope is helpful tips and instructions for both the officer and driver on how to successfully communicate with each other."

"People really appreciate the ability to practice," said Fred Volkmar, of the ASD Center. "The ability to actually do something with the police so that it's easier when they actually are stopped. Most of the times when they're stopped it's for things like a taillight is out and it's good for police to know how to approach a person with autism, so it seems to be a win-win on both sides."

Sacred Heart public safety, Southern Connecticut State University police department and Fairfield police also participated.