This commenter is correct. >BS you don't need a search warrant to search a backpack. He was wanted for murder there was a warrant for his arrest and for the safety of the officers the backpack in his possession is searched just like his person looking for weapons or perhaps a bomb. This is standard procedure. The bodycam footage does not matter as far as chain of custody for the backpack. Was evidence not allowed before they wore body cams? The evidence secured at the scene in his possession will be admissible.