N.Y. Town Law § 154

§ 154. Administration. The town board may make, adopt and enforce\nrules, orders and regulations for the government, discipline,\nadministration and disposition of the police department and of the\nmembers thereof. Such rules and regulations and all amendments thereto\nshall be in writing and shall be posted in a conspicuous place in the\npolice headquarters. Each member of the department shall receive a copy\nthereof and of all amendments thereto.\n