The incompetence was:
1. The entire suspicion was based on an IP address
2. They did no background investigation for potential counter evidence - they didn't even know to expect children in the house (school aged children that have been attending public school for at least 5 years each at that point).
3. As a result of the above, one of my kids was somewhat traumatised by being woken up with a police officer in her room
7 cops. They called in two more because I had so much computer hardware, so 9 cops altogether for an entire morning.
8 months later I get told I can pick up my (~$10k worth of) gear that they took. No case to answer.
Should never have made it to a warrant. Useless, lazy, waste of a lot of resources. And creates an entire extended family with significantly diminished respect for, and increased suspicion of, the police force as a whole...
... you know, that whole erosion of trust in the system that's playing out writ large right now.