Training and behavioural problems
It also includes information on obedience training (i.e. contacts and 'approved dog training organisations').
For other dog training and behavioural problems, ask your vet, local council, animal shelter or dog club/ association for advice, or look under "Dog training" in the Yellow Pages.
Note that if your dog is displaying aggressive behaviour, you must seek professional advice as soon as possible. You should have your dog checked by a vet for any health problems that might be contributing to the aggression, and you should also contact an animal behaviouralist or dog trainer.