The problem with a lot of evidence (this in particular) is authentication. The best authentication of this simulation evidence is verification from the only person who could testify that it accurately depicts what he observed and experienced, and that is the defendant. I wouldn’t put Zimmerman on the stand to do that, because once he takes the stand, he is open to a wide array of questions the prosecution may ask. The trial is going so well for the defense to date, I wouldn’t risk it.
>> The problem with a lot of evidence (this in particular) is authentication.
Be that as it may, it’s not the job of the defense to “up front” authenticate it.
It’s the job of the prosecution to DISauthenticate it. The defense then responds as required to fight off the prosecution’s challenges to Z’s version of events. This has proven to be quite easy to do — the prosecution’s own witnesses have been a great help.
I agree that it would be a bad idea to put Z on the stand. I also don’t think they need to — the prosecution’s case is as weak as they come.