Sgt. Wayne Ziese, a 27-year CHP officer who has been the agency’s media spokesman in the Bay Area for the past five years, is retiring April 30. He gave reporter James Lanaras of Bay City News a wide-ranging interview about his career, and says the toughest part of the job is dealing with accidents involving children. Sgt. Les Bishop and Officer Michael Wright will replace Ziese. Upon retirement, Ziese will work part-time for the state Office of Traffic Safety, coordinating 33 grants for the “Avoid” program that funds local DUI checkpoints.