28 CFR § 115.178
Referrals for prosecution for detainee-on-detainee sexual abuse
July 24, 2020
(a) When there is probable cause to believe that a detainee sexually abused another detainee in a lockup, the agency shall refer the matter to the appropriate prosecuting authority.
(b) To the extent the agency itself is not responsible for investigating allegations of sexual abuse, the agency shall inform the investigating entity of this policy.
(c) Any State entity or Department of Justice component that is responsible for investigating allegations of sexual abuse in lockups shall be subject to this requirement.