Bavaria's regional domestic intelligence agency can monitor the right-wing populist AfD, the state's top court has ruled. Several states are trying to implement similar steps, with the opposition party challenging it.
I hope that they have learned from history and call their undercover agents back early enough.
In his capacity as head of the intelligence department, Mayr recruited Adolf Hitler as an undercover agent in early June 1919. Hitler’s role involved informing on soldiers suspected of communist sympathies.
Furthermore, Hitler was sent as an observer to the numerous meetings of the various newly formed political parties in Munich. Hitler spent much time at the meetings and wrote reports on the political ideas, goals and methods of the groups. This included studying the activities of the DAP
I hope that they have learned from history and call their undercover agents back early enough.
(which became the NSDAP)
https://en.wikipedia.org/wiki/Karl_Mayr