N.Y.C. Admin. Code § 3-319: § 3-319 Power of the comptroller to issue subpoenas and administer oaths, to compel witnesses to testify.

For the purpose of settling or adjusting claims for damages under section 3-318, the comptroller may issue subpoenas and administer oaths to witnesses. The comptroller may issue a subpoena requiring such witness to appear at such time and place as the comptroller may designate in the subpoena.