Or why police need to announce that they smell weed before bashing in your front door to check. Or make a statement that they heard someone screaming for help b

Or why police need to announce that they smell weed before bashing in your front door to check. Or make a statement that they heard someone screaming for help before bashing in your front door. Or make a statement that they heard gun fire so they can bash in your front door. My point being police don't always need a warrant to enter a place. Just like they don't need warrants to MITM cell towers.