The date being 10 Apr 2007, Adrian decided to write:
I think they'd need to have insurance stickers on but I don't know what the rules are in that situation.
Whereas the police can prosecute you for not being in proper control of your vehicle or driving without due care and attention for whatever reason, they can also prosecute you for driving whilst holding a mobile phone regardless of whether you are driving raggedly or not. Therefore the two offences do not duplicate each other.