Amid nationwide protests in response to the police killings of Breonna Taylor and George Floyd, there were extensive calls to end no-knock warrants. Critics argue that no-knock warrants were prone to lead to deadly use of force by police and the deaths of innocent people. No-knock warrants also conflict with the right to self-defense, "stand-your-ground" laws, and the castle doctrine which explicitly permit the use of deadly force against intruders.