At least with Zimmerman, they have a person that they can test with. Maybe an opportunity to say it is or may not be Zim.
They could record him over the same equipment or same type of equipment and drop a live squirrel in his britches. Maybe, that might come close to the elevated pitch you get when you are terrified.
>>They could record him over the same equipment or same type of equipment and drop a live squirrel in his britches. Maybe, that might come close to the elevated pitch you get when you are terrified.<<
One of the defense experts stated flatly that no tests like that were ever done because doing something to a subject to make him terrified would never pass the research ethics committee.