breach of the peace

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun law The legal offense of engaging in public behavior which is violent, rowdy, or disruptive.
• noun by extension Any public disturbance or disorderly behavior.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun any act of molesting, interrupting, hindering, agitating, or arousing from a state of repose or otherwise depriving inhabitants of the peace and quiet to which they are entitled