It's a ludicrous system – I've experienced it first hand.
If for some reason the letter isn't delivered (or indeed sent), the original offence is scrapped and a new offence issued for Failure to provide information.
Frustratingly, there is no obligation on the Police to provide proof of posting, and per the law, it is deemed received once sent.
If for some reason the letter isn't delivered (or indeed sent), the original offence is scrapped and a new offence issued for Failure to provide information.
Frustratingly, there is no obligation on the Police to provide proof of posting, and per the law, it is deemed received once sent.
Try proving you didn't receive something...