Complex sentence: Wambaugh received an Associate's degree from Chaffey College, joined the Los Angeles Police Department in 1960 (eventually serving 14 years) and rose through the ranks from patrolman to detective sergeant.
Split into simpler sentences: Wambaugh received an Associate's degree from Chaffey College and joined the Los Angeles Police Department (LAPD) in 1960. He served 14 years, rising through the ranks from patrolman to detective sergeant.