The police usually enjoy a great amount of autonomy, of which two levels can be distinguished. The first level (micro level) is called police discretion, and is used by rank-and-file officers. Daily police matters call for quick if not split-second decisions by individual officers on the beat, like bringing someone to the police station, approaching an apparent source of disorder, or following or abandoning the task given by a superior in order to help someone in trouble. The second level (macro level) is the autonomy exercised by the police as an institution. This autonomy is conceptualized in relation toward the authorities (usually political or judicial authorities), which give the police their mandate.