§ 505.13 General exemptions (Subsection (j)).
Primary source
Verbatim text below is from the Electronic Code of Federal Regulations (eCFR), a public-domain U.S. government work. Always verify the current version with the eCFR before relying on it for any legal matter.
Full Text
(a) General exemptions are available for systems of records which are maintained by the Central Intelligence Agency (Subsection (j)(1)), or maintained by an agency which performs as its principal function any activity pertaining to the enforcement of the criminal laws (Subsection (j)(2)).
(b) The Act does not permit general one exemption of records compiled primarily for a non-criminal purpose, even though there are some quasi-criminal aspects to the investigation and even though the records are in a system of records to which the general exemption applies.
This is legal information, not legal advice. Laws vary by jurisdiction and change frequently. Always verify current law with official sources and consult a licensed attorney in your jurisdiction for advice on your specific situation.