My feeling is that they did record. But if they did, they would have destroyed the tapes as soon as they figured out that in the gift statement she says that they hit her. She obviously didn't make that charge up on the spot to hand it to the police. They really did hit her.
I believe they did hit her, because it follows logic. I think they do what they can get away with to get the result they want. If hitting someone in a way that will not be detectable later will result in putting additional pressure on them, then why not? Since, a good portion of the time, they are actually dealing with the correct suspect, then the ends justify the means, right?
But if the person is not really guilty ....

