You know, somebody actually complimented me on my driving today. They left a little note on the windscreen, it said 'Parking Fine.' So that was nice.
Tim Vine

Click to visit www.visitwesterham.org.uk

Yes.  A dog is regarded in law as a "normal accompaniment" (like a camera).  The law does not actually specify whether it should be on a lead, or not, but merely that it should be under control.  If you are near livestock, you should always keep it on the lead.  If a landowner sees your dog worrying livestock, or if he thinks it may be about to, he is legally entitled to shoot it.