This worldview provides police with a cognitive lens through which they interpret society, the police institution, situations and events. 5. The police subculture incorporates the ideas most valued by officers. The ethos of bravery is a central component of the police character. The autonomy ethos emphasizes the need for officers to be free from external influences if they are to be able to perform their jobs effectively. The ethos of secrecy stems from a fear of loss of autonomy and a perception that outsiders might use information in ways that are harmful to police.
Cultural themes represent common beliefs in the police occupation.
One theme notes that police are socially isolated from others in society. Another cultural theme emphasizes the need for police solidarity and loyalty. Police postulates are statements that guide and direct the actions of police officers. One category of postulates reinforces the need for police secrecy and solidarity. A second category of postulates supports police isolationism.