If you leave a department for any reason (example: injury, personal emergency, education, for a period of more that a little over 3 years, do you have to enter the full Academy once again, for the same department you took leave in the state of California:

• Unfortunately, this time span is long, have to complete the full Academy again.
• no retraining needed, the officer will have retained enough from the initial Academy
• the officer must successfully complete a refresher retraining course, about three weeks long.
• Oh Lord, pollleaaasse, one Academy is enough, just refresh firearms training.