Would regulating the dog-walking industry make it safer? 

There's been an increase in the number of dog attacks in the past 5 years, according to exclusive data obtained by the BBC.
The Met Police says it's seen an 83% rise in out-of-control dogs causing injury. Last year alone, they seized more than 1,100 dogs and spent almost a £1m on vet and kennel bills.
After the death of a dog walker in Surrey this year, one Londoner is calling for more safety rules, as Olivia Demetriades reports.
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