Mandel (1998) described how members of a German police battalion murdered Polish civilians without being directly ordered to. They did not see themselves as agents of a higher authority. Instead, they were given a choice, so acted autonomously. They had many reasons for doing so โ hatred, prejudice, racism etc. This is a different picture from Milgram's oversimplified one, in which such behaviour is due to a single factor โ acting as the agent of a destructive authority.