Comment by ziddoap

>What detection?

Not speaking to the effectiveness of the detection (it's hard!), but there's information available, for example:

https://blog.torproject.org/malicious-relays-health-tor-netw...

https://gitlab.torproject.org/tpo/network-health/team/-/wiki...

https://gitlab.torproject.org/tpo/network-health/team/-/wiki...