RSA 171-A:27: Custody and Transportation.

I. Any law enforcement officer shall take custody of persons who are subject to proceedings for involuntary admission under the following circumstances:

(a) Upon issuance by an administrator or designee of a complaint for delivery for review pursuant to RSA 171-A:23, II;

(b) Upon a determination to revoke a conditional discharge temporarily pursuant to RSA 171-A:23, III; or

(c) As necessary to ensure the presence of the person at hearings or examinations conducted under RSA 171-A or 171-B, to effect a transfer between receiving facilities, or to carry out any other lawful order of a court.

II. A law enforcement officer shall also transport any person taken into custody to the appropriate receiving facility, court, place of examination, or other location.