"How [A] reacted to the defendant's behaviour to her is an important part of this evidence and it is necessary for the jury to be able to know about this in order to be able to understand why events moved on in the way that they did and in particular to address the delay in allegations being made over a number of years. The evidence about the camcorder in the bathroom explains why she left home and would only go back for visits and helps, in my view, to inform the jury what was going on in the intervening years after the alleged last assault against her when she was 14; something that the jury could well ask about in the absence of any evidence concerning that period."