If you give police the right to invade and arrest any group that is "sheltering criminals", and you define "crime" broadly enough to include "suspicion of consp

If you give police the right to invade and arrest any group that is "sheltering criminals", and you define "crime" broadly enough to include "suspicion of conspiracy to cause a public nuisance" i.e. encouraging protest, then you have given up on living in a free society.