Police at the University of Missouri are determining whether to file charges against Melissa Click, the assistant professor who generated an uproar this week when she was filmed blocking media access to protests at the school.

Major Scott Richardson told CNNMoney that the investigation remains “open and active.”

Mark Schierbecker, the University of Missouri student who filmed Click, filed a complaint against the professor on Wednesday alleging simple assault.

In the video, Click, an assistant professor of mass media at the university’s School of Communications, can be seen trying to grab Schierbecker’s camera.