edit: sleepy me misread ADF as AFP
Original comment:
Honestly, I'm only half surprised. I know of at least two instances of child-abuse plus neo-Nazi material being discovered in German police groups (the first linked article is of an investigation of a far-right police chat being discovered when searching the phone of an SEK officer after finding pedophilic texts). As far as I'm concerned, the links between police jobs, neo-Nazism and child abuse are not mere coincidence, there are material reasons why this triangle appears repeatedly.
https://www.dw.com/en/germany-20-police-officers-investigated-over-far-right-chats/a-57832510