MediaTakeOut.com is reported to have pics of Rihanna committing a SERIOUS CRIME under California law . . . VANDALISM.

The pic shows Rih carving her name in a bench inside a PUBLIC PARK in Los Angeles. We are WITHHOLDING the name of the park (#teamnosnitch#)

Anyways, under California law - they take VANDALISM very seriously. In fact, if you are charged with vandalism, it's a MISDEMEANOR (not a violation like in many OTHER states). That means she faces up to a YEAR IN JAIL!!!