Cell phone videos of Philadelphia Police officers — including an infamous episode in which a cell phone video captured a policeman striking a local woman at the Puerto Rican Day parade — have been the center of recent controversial legal decisions. "This is a rapidly moving new technology," said Jerry Ratcliffe, chair of Temple's Department of Criminal Justice. "How do we incorporate cell phone video into the evidential process? How much weight should rest on video evidence? I think we're lagging behind the technology."