Deadly Dogs

As three children battle to recover from savage dog attacks, 4x4 cameras have exclusive access to surgeons at Birmingham Childrens' Hospital as they try to minimise their scarring and psychological damage.

Vanessa Collingridge meets five-year-old Leah Preston who nearly died after she was attacked by two dogs outside her home in Wolverhampton.

We talk to Leah's mum, Diane Reynolds, as she launches a campaign to rid Britain's estates and parks of dangerous dogs.

Dog fighting

Ginny Buckley investigates why dangerous dogs are back on our streets.

She explores the link between the rise in the number of attacks on children and a recent increase in dog fighting.

The Dangerous Dogs Act, introduced more than a decade ago, was meant to control the problem.

But dog wardens say it is now unenforceable as criminals use cross breeds to evade the law.

Dog holocaust

When a six-year-old boy was mauled to death by two dogs in Hamburg, the German authorities introduced draconian new laws.

Certain aggressive breeds are impounded, and the animals and their owners then face stringent tests to see if they are safe to walk the streets.

The dogs who fail are given a lethal injection.

Now there is a backlash against what campaigners call a "dog holocaust".

Alice Beer examines how the controversial legislation is working.

Canine rehabilitation

Dog guru Colin Tennant has worked with aggressive dogs for 30 years.

Not suprisingly, he has been attacked hundreds of times, but he has also rehabilitated thousands of dogs.

He says dogs always give plenty of notice before they bite - but we humans just ignore all the warning signals.

Richard Bilton follows Colin as he works his magic on an English Bull Terrier who is starting to get out of control.