N.Y.C. Charter § 438: Section 438. Maintenance and operation of telegraph and telephone lines, etc.

The commissioner shall have power to erect, operate, supply and maintain, subject to the general laws of the state, all such lines of telegraph and telephones and other means of communication as for the purposes and business of the police the commissioner shall deem necessary. The commissioner may provide all instruments, fixtures, property and materials for the purpose above mentioned and control the same.