Welcome to the homepage of PTSS, the Post and Telecommunications Surveillance Service. This website is aimed at Communication Service Providers (CSP), Law Enforcement Agencies (LEA) as well as the Federal Intelligence Service (FIS) for information, communication and exchange purposes.

The PTSS is responsible for ensuring the implementation of post and telecommunications surveillance measures. It acts independently and autonomously, and is not subject to directives.

Annual Report 2020

The Service PTSS is publishing an annual report for the third consecutive year.

The report reviews the past year 2020, provides an insight into how it works collaboratively with telecommunications providers and law enforcement services, and documents its activities in facts and figures.

Jahresbericht 2020 en

Statistics 2020

The Swiss prosecution authorities and the Federal intelligence service (FIS) may order post and telecommunications surveillance measures for the purpose of investigating serious criminal offences.

The overall number of surveillance measures ordered remained stable in 2020.




Persons required to cooperate can submit an application via the extranet in order to have their obligation status assessed by PTSS, for example to have their status changed to CSP with reduced surveillance obligations (Downgrade). Documentation supporting the application must also be submitted here. Furthermore, the persons required to cooperate can communicate changes to their details, for example the contact details of their LI-Officers, via the extranet.


9th september 2021
Audit of the key ICT project Telecommunications Surveillance

31st may 2021
Changes in the management within the PTSS

23th march 2021
Press release - Statistik zur Fernmeldeüberwachung: Stabile Zahlen der Überwachungsmassnahmen

4th january 2021
Press release - Fernmeldeüberwachung: Neue technische Standards

30th july 2020
Publication annual report 2019

Last updated: 01.11.2021 - 09:00