(This refers to the reactive scenario.)
One irony of nostr:nprofile1qqs0m40g76hqmwqhhc9hrk3qfxxpsp5k3k9xgk24nsjf7v305u6xffcpp4mhxue69uhkyunz9e5k7tcpzemhxue69uhk2er9dchxummnw3ezumrpdejz7l3vw43's CASF (CSAM activated soft fork) is that users would have to go and see that there's ndeed CSAM in an OP_RETURN, which AFAIK would actually be illegal. (I know I certainly won't do it.)
Discussion
Police generally have legal authority for this type of work. They will have to initiate the activation.
Nothing says Bitcoin like "the police will initiate the activation".
Already happened 6 years ago. Retardation or acting in bad faith? Or both?