The dogs most vulnerable to theft in the UK - is your dog on the list? (Canva) Due to an increase in demand for dogs in lockdown criminal gangs have started swiping dogs from their owners. Research carried out by Benchmark Kennels has revealed the priciest puppies in the UK, finding average asking prices ranging from £1,050 to £3,700, over double the pre-lockdown 2020 value. View the full piece here. With puppy prices climbing since the start of last year and dog theft cases increasing by 170%, the Benchmark Kennels team decided to investigate which breeds are now the most expensive and at risk of criminal activity.