Swiss Criminal Procedure Code
(Criminal Procedure Code, CrimPC)

In an un­der­cov­er in­vest­ig­a­tion, po­lice of­ficers or per­sons tem­por­ar­ily ap­poin­ted to carry out po­lice du­ties make con­tact with per­sons un­der false pre­tences by us­ing a false iden­tity (cov­er) sup­por­ted by doc­u­ments with the aim of gain­ing the trust of those per­sons and in­filt­rat­ing a crim­in­al en­vir­on­ment in or­der to in­vest­ig­ate par­tic­u­larly ser­i­ous of­fences.