Dogs can be used as weapons. They often cause neighbour disputes. If dogs are kept as pets then their owners should be made to feel really responsible for them.
Introduce a dog licence for every dog, which would ensure that all dogs are microchipped,. Concessions could be made for pensioners owning one dog, and those who need dogs for their business (e.g. farmers) Any dog found not having a microchip should be put down. It's harsh, but there are too many dogs in this country.