New York Consolidated Laws, Criminal Procedure Law - CPL § 120.60 Warrant of arrest;  what police officers may execute

1. A warrant of arrest may be executed by (a) any police officer to whom it is addressed, or (b) any other police officer delegated to execute it under circumstances prescribed in subdivisions two and three.

2. A police officer to whom a warrant of arrest is addressed may delegate another officer to whom it is not addressed to execute such warrant as his agent when:

3. Under circumstances specified in subdivision two, the police officer to whom the warrant is addressed may inform the delegated officer, by telecommunication, mail or any other means, of the issuance of the warrant, of the offense charged in the underlying accusatory instrument and of all other pertinent details, and may request him to act as his agent in arresting the defendant pursuant to such warrant.  Upon such request, the delegated police officer is to the same extent as the delegating officer, authorized to make such arrest pursuant to the warrant within the geographical area of such delegated officer's employment.  Upon so arresting the defendant, he must proceed as provided in subdivisions two and four of section 120.90.