Swiss Criminal Procedure Code
(Criminal Procedure Code, CrimPC)

¹ The crim­in­al justice au­thor­it­ies shall in­vest­ig­ate ex of­fi­cio all the cir­cum­stances rel­ev­ant to the as­sess­ment of the crim­in­al act and the ac­cused.

² They shall in­vest­ig­ate in­crim­in­at­ing and ex­culp­at­ing cir­cum­stances with equal care.