There have been some instances where a theft has taken place and the suspects were known to the customers. The only ones who could identify them would be our customer. In that situation, I've had my customers come in and we would review tape together (just the portion of the transaction).
I personally don't see how seeing other customers in the building is a violation of privacy. I mean, if you walked into the bank at the same time as another customer, you're not violating privacy. By seeing a person you're not getting any "private" information that could be detrimental to the other customer.
Sorry, I don't see the logic on that one.
But no, I wouldn't hand over the tape to anyone except law enforcement.
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The artist formerly known as 'Swedish Chef'