Caught red handed? Justin Theroux photographed messing with license plate

It’s no secret that Jennifer Aniston’s fiancé Justin Theroux is a bit of a bad boy, but is he a law breaker?

On Tuesday, photos surfaced showing Theroux sticking a Velcro license plate onto the back of his motorcycle.

PHOTOS: Justin Theroux breaking the law?

A removable license plate is often times used by motorcycle owners so they can avoid getting ticketed if they park illegally. A vehicle parked illegally in New York City, where Theroux was spotted, can be issued a $110 ticket.

According to X17, a car near Theroux's bike had been ticketed for parking in the area.

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The 41-year-old actor has been engaged to Aniston for about a year. The two met on the set of their film “Wanderlust.”

Theroux’s rep did not immediately respond to FOX411’s request for comment.