Documented evidence
The verified official record lists Tribunal des mesures de contrainte (TMC) in the category court with location Case postale, 1951 Sion, VS.
Source
Schweizerische Eidgenossenschaft / Kantone · https://www.vs.ch/web/tribunaux/tribunal-des-mesures-de-contrainte
Context
This entry reflects only the verified state of the source. It does not imply any further legal or personal assessment.