Shifting Effect News Today

The streets. >> from a prosecutor standpoint, mr. parks how would you prove that the injury took place and was inflicted by police officers? i mean proving that even with the videotape is still going to be pretty hard if they all have the same testimony, isnt it? >> not necessarily. ive had similar cases to this. where a person has suffered an injury on takedown. you will detect whether or not there is bruising to some part of his neck or head, that may have had a shifting effect that would have...