Terrence Duren, an African-American ex-Marine and 18-year veteran of the UCLA Police Department, Tasered Tabatabainejad five times.

The 2001 UCLA Officer of the Year, Duren has been the subject of other use-of-force complaints and previously recommended for dismissal. In an October 2003 incident, Duren shot and wounded a homeless man in a University building, a case that went to trial. In May 1990, Duren was accused of using his nightstick to choke Kent S. Scott, who was hanging out in front of a fraternity late on a Saturday night. Scott sued and the university moved to have Duren removed from the force, but later gave him 90 days’ suspension. Duren has stated all of the past allegations against him regarding police misconduct and use of excessive force were investigated by the UCPD and proven false. (The homeless man was convicted of assaulting an officer.)

Prior to joining the UCPD in the late 1980s, Duren was fired from the Long Beach Police Department. Following the Tasering incident, Duren was not suspended, and returned to active duty.