Lt. Mike Tao is the unofficial technology, science and electronics expert for the Los Angeles Police Department's Priority Homicide Division. He is a true geek and loves to explain the science behind everything, even when a short answer will do. Deputy Chief Brenda Leigh Johnson often gets exasperated with him, but relies on his expertise.Tao discovers that offering sweets to Brenda is a good way to get her to collect herself. He also brings bottles of Kahlua to the Scientific Investigation Division to expedite their processing of evidence.Background: He is of Chinese descent and his wife Kathy is Japanese. They have a teenage son, Kevin. Before being transferred to Priority Homicide, Tao was a member of the SID. He also attended one year of medical school. He never fires his weapon.