Swiss Criminal Procedure Code
(Criminal Procedure Code, CrimPC)

¹ The pub­lic pro­sec­utor and, dur­ing po­lice en­quir­ies, the po­lice may or­der un­der­cov­er en­quir­ies if:

a.

it is sus­pec­ted that a felony or mis­de­mean­our has been com­mit­ted; and

b.

pre­vi­ous en­quir­ies or in­vest­ig­a­tions have been un­suc­cess­ful or the en­quir­ies would oth­er­wise have little pro­spect of suc­cess or would be made dis­pro­por­tion­ately more com­plex.

² If un­der­cov­er en­quir­ies ordered by the po­lice have been car­ried out for one month, the pub­lic pro­sec­utor must ap­prove their con­tinu­ation.