O.K. no “Para-Military” crap. Just knock on the door and ask nicely if Mr. Murder Scum could please come to the door so we can take him into custody and advoid any unpleasant shouting and disturbance that may escalate in injury or death to any innocent bystanders that responsible adults have criminally placed in harms way. Yea, that would work.
Something like. "We have a warrant for Mr. Murder Scum, the house is surrounded and if he doesn't present himself in 15 seconds we are breaking the door down. Please don't make us do this the hard way"
Why not start at a low level tactic and then escalate to flash bangs, dynamic entry ramparts, shoot the dog and then toss the place........Oh' and accidentally kill a grandmother, toddler or an innocent bystander.
Stop making sense.
Making sense is a personal attack on every police officer everywhere.
It works as the first step and it has worked for years. For the small percent that decides to resist, or when no one comes to he door, then you can DECIDE if it is appropriate to escalate to a forced entry. You might decide to wait out the perp.