concurring.
Pa.R.Crim.P. 2007 is a rule of reason that can only be considered in the light of the facts of each case. The possession of a warrant is not a license to burst, ax in hand, into the premises to be searched. Neither is the “knock and announce” rule to be accounted a grace period for the destruction of the evidence sought. All the circumstances, the good faith of the officers and the rights of those searched must be balanced in making reasonable sense of the rule.
I join the majority opinion.