California Highway Patrol officer Daniel Andrew, caught on video by a passing motorist straddling and repeatedly punching Marlene Pinnock on a Los Angeles freeway, may face criminal charges, Los Angeles’s ABC7 reported.

CHP sent its investigation on the incident to the Los Angeles County District Attorney’s office, which now will decide whether to file charges against Andrew, ABC reported. CHP is also conducting its own internal investigation into the incident.

Last month, Pinnock and her attorneys filed a lawsuit alleging that her civil rights were violated.