While standard locks fold like cheap lawn chairs against determined thieves, this lock fights back. It has a graphene composite shield that actively destroys cutting tools on contact.

It appears someone cut locks on two of them to get in. “Regular lock,” he said, “a bolt cutter, right through it.” Inside the garages, furniture, clothes, and other valuables were destroyed.

On Saturday, officers say they found that cut lock and an abandoned bag with bolt cutters in it. They believe someone in the yard was trying to allow nearly 150 protesters inside, but there was no ...