This concept is just as dangerous as the right wing claiming LHC will open black holes. There’s an implication here that just as soon as LHC was turned on it suddenly gathered information about every unknown Force, particle, and energy in the universe.
The Large hadron collider took 4 years to confirm the higgs boson; as of today it is only on its third data collection run. LHC is hardly a silver bullet.
It’s not technically an arrest. In a high-stakes call, the police will typically detain everybody until they can figure out what’s going on. That means potential victims as well as potential attackers. It’s a safety measure.