Didn't the text messages confirm that there was a sexual relationship when he was fifteen?  Also the woman's texts telling him that no one must know because she would have been in a lot of trouble.   Let's face it, she's not just fat, she's not even just obese.  An absolute bush pig.

Yes. I would think the text messages are evidence and that at the age of 15 the police could have done something without the boy needing to report the matter .

I would think it would fall under the Telecommunications Crime Act and some others ?

The phone numbers to and from would be traceable and ? the 15 year old phone registered in his Mothers name.You would think that the Parent could act on that ?