In February my mobile phone was stolen from me in the street by someone known to me. I had a witness statement supporting what happened. The person then downloaded my whole phone, photos, emails, everything, before returning the phone to my partner (her ex) and then taunting us with what she had access to. I have just received a letter from the Acting Senior Sergeant advising they are not prosecuting due to insufficient evidence. They have not acknowledged my advice to them about the additional evidence, where the thief emails a recording of a phone conversation between her and my partner which she recorded herself, in which she admits all. I'm wondering what recourse I have to insist on the theft charge. I gather the police and particularly the e-crimes unit are too busy and consider it too minor, despite what I think is ample evidence to prosecute. I would appreciate help on this. In particular, what can e-crimes prosecute, and can a recording of a phone conversation be used as evidence? The conversation was recorded by both participants in the conversation, and the thief actually emailed her recording to us. Thanks.