Hue and cry
In common law, a hue and cry is a process by which bystanders are summoned to assist in the apprehension of a criminal who has been witnessed in the act of committing a crime.
a : a loud outcry formerly used in the pursuit of one who is suspected of a crime b : the pursuit of a suspect or a written proclamation for the capture of a suspect 2 : a clamor of alarm or protest