Should alleged officer misconduct be investigated by an Internal Affairs department or civilian review board?

Should alleged officer misconduct be investigated by an Internal Affairs department or civilian review board? Explain.If you were (or are) a supervisor to a group of veteran officers with over 15 years of law enforcement service, how would you motivate them?What motivates you?Do you agree or disagree with the following statement: “It is not possible to motivate anyone.” Why?