Searches may be authorized only by a judge or, when time is of the essence, by other authorities designated by the cantonal laws. Searches may be carried out only in the manner prescribed therein.
Surveillance is possible upon a competent judge’s authorization. Such action shall be for a limited time.
A panel elected by the Federal Parliament shall exercise parliamentary oversight. A comparable parliamentary oversight shall be afforded by each canton.
Interferences and restrictions shall otherwise only be permissible to avert a danger to the public or to the life of an individual or, pursuant to a law, to confront an acute danger to public safety and order.
