N.Y.C. Admin. Code § 13-201: § 13-201 Definitions.

As used in this subchapter the following terms shall mean and include:

1. "Member."

(a) A person who was a member of the police force in the department at the time when this section shall take effect.

(b) In any case where a member, while serving as a member of the police force, is appointed police commissioner or a deputy police commissioner, he or she shall, while serving as police commissioner or deputy police commissioner, continue to be a member of the pension fund. For the purposes of this subchapter, a member whose membership is continued pursuant to this paragraph (b) or whose membership is restored pursuant to paragraph one of subdivision f of section 13-206 of this subchapter, shall during the period of such continuance or restoration of membership, as the case may be, be deemed to be a member of the police force and the police department and his or her service as police commissioner or deputy police commissioner during such period shall be deemed to be service in such force and department.

2. "Board of trustees". The board of trustees provided for in section 13-202 of this subchapter.