Well-known doshin officials are Machikata-doshin, who handled justice, administration, and police affairs in Edo under the town magistrate, and Sanmawari-doshin, who conducted patrols of the town.
町奉行の下で江戸の司法・行政・警察事務を務めた町方同心、市中見廻りを行なった三廻同心はよく知られている。