says he wants an inquiry into the Salisbury nerve agent attack, citing a Sky News interview with the boss of Porton Down.
The Russian president also says Moscow would demand to be part of such an investigation.
Sergei Skripal speaks to his lawyer from 
behind bars seen on a screen of a monitor outside a courtroom in Moscow. Russia has called an extraordinary meeting of the Organisation for the Prohibition of Chemical Weapons (OPCW) in the Hague today where it will air its complaints about the allegations made against it.
Gary Aitkenhead, chief executive of the Defence Science and Technology Laboratory (DSTL) at Porton Down, told Sky News they had not been able to establish where the novichok nerve agent used to poison Sergei and Yulia Skripal was made.
The Ministry of Defence’s Porton Down research centre Speaking in Ankara after talks with Turkish President Recep Tayyip Erdogan, Mr Putin claimed novichok could be made in 20 nations.
Given the lack of precise information about the nerve agent’s origin, he lamented the speed at which the anti-Russian campaign has been launched, adding that it causes bewilderment.
Russia’s embassy in the UK said it understood from the very start that Whitehall statements on the nerve agent having been produced in Russia were a bluff.
Toby Melville A horseshoe is seen hanging above the front door outside of the home of former Russian military intelligence officer Sergei Skripal, in Salisbury Now this has been confirmed by the head of the secret lab, it said.
This only proves that all political declarations on the Russian origin of the crime are nothing but assumptions not stemming from objective facts or the course of the investigation.