"Law enforcement" handler om hele strafferettsapparatet (ref 1). Jeg foreslår å oversette med "lovmyndighet" (ref 2) eller "lovhåndhevende myndighet" (ref 3).

Ref 1: "Definitions of law enforcement official
An officer or employee of any agency or authority of the United States, Pennsylvania or a political subdivision of a state who is empowered by law to investigate or conduct an official inquiry into a potential violation of law, and to prosecute or otherwise conduct a criminal, civil or administrative proceeding arising from an alleged violation of law."
(www.dpw.state.pa.us/General/HIPPAPrivacy/003670787.htm)

Ref 2: "Glomdalsmuseet vil fullt ut samarbeide med enhver lovmyndighet eller rettskjennelse" (http://museumsnett.no/glomdalsmuseet/html/romani/latjo-drom/...

Ref 3: "sanofi-aventis vil fullt ut rette seg etter enhver lovhåndhevende myndighet eller domstolsbeslutning" (http://www.sanofi-aventis.no/live/no/no/layout.jsp?scat=A87C...