Chris Phillips, the former head of the National Counter Terrorism Security Office said: "We trust those countries to do things the right way". "It's famous for its 123 meter spire, it's famous for its clock, one of the first ever created in the world that's still working".
Britain said Boshirov and Petrov are military intelligence agents who were dispatched to Salisbury to poison former Russian agent Sergei Skripal and his daughter.
The men also denied that they had smuggled the Novichok nerve agent used to poison Skripal, and four other people, into Britain disguised as perfume.
Britain said the two suspects were Russian military intelligence (GRU) officers nearly certainly acting on orders from high up in the Russian state.
They told state-controlled outlet RT News that they were in Salisbury, where Skripal and his daughter were poisoned, because their friends had recommended its "famous cathedral". But Vladimir Putin has denied that these men had anything to do with the poisoning and that they're in any way attached to the Kremlin. He called on them to contact the media.
"The government is clear these men are officers of the Russian military intelligence service - the GRU - who used a devastatingly toxic, illegal chemical weapon on the streets of our country", the statement said. We arrived in Salisbury on March 3 and tried to walk through the town, but we lasted for only half an hour because it was covered in snow.
Addressing CCTV pictures of both men passing through a gate at Gatwick airport at exactly the same time, Mr Boshirov said: "We always go together through the same corridor and the same custom service officer or a policeman". "There is nothing unusual or criminal there, I assure you".
"Today - just as we have seen throughout - they have responded with obfuscation and lies".
The Kremlin-backed station aired the interview a day after President Vladimir Putin said Russian Federation had identified the men sought by Britain and urged them to address the media.
Statements by the two Russians "are not credible", the British lawmaker who represents the city in parliament said on Thursday.
The pair said they had travelled to Europe quite a lot for holidays and for business.
"Well, we came there [to the UK] on 2 March, then went to a railway station to see the timetable".
Putin appeared to suggest they should tell their story publicly. Boshirov said. He went on to claim that if they had such an item in their luggage, it would have been hard to get past airport customs agents without arousing suspicion.
He wrote on Twitter: 'Delighted that Alexander Petrov and Ruslan Borishov [sic] were able to see the world-class attractions that #Salisbury has to offer.