At a UN Security Council meeting held the same day, Russian Federation dismissed Britain's evidence as "lies" and said its investigation was "politically motivated".
Providing an in-depth update on the complex investigation, Mr Basu said the suspects spent two nights at a hotel in east London and made a suspected "reconnaissance" trip to Salisbury the day before the Skripals were poisoned.
Russian Federation will be present at the meeting because of its status as a Security Council member.
British authorities and the worldwide chemical weapons watchdog say the victims were exposed to Novichok, a type of military-grade nerve agent developed by the Soviet Union during the Cold War.
Mr Wallace told the BBC: "The GRU is, without doubt, not rogue, it is led, linked to both the senior members of the Russian general staff and the defence minister and, through that, into the Kremlin and the president's office".
Two Russian nationals have been named as suspects in the attempted murder this year of a former Russian spy and his daughter in southern England, according to a report.
British prosecutors named the two suspects as Alexander Petrov and Ruslan Boshirov.
Peskov also said that Russian Federation "has no reasons" to investigate the two individuals charged Wednesday because Britain has not asked for legal assistance in the case.
Basu added that photos were being released of the men in the hope that a member of the public would recognise them.
Russian Federation has denied any involvement in the attack using the nerve agent Novichok that left Skripal and his daughter unconscious on a park bench in Salisbury. Mr Corbyn said samples of the nerve agent involved should be sent to the Russian government so they could help to identify it.
National Football League notebook: Rodgers leaves with leg injury
On the following drive, he picked the backup signal-caller off and ran it back 27 yards for a touchdown to put the Bears up 17-0. Even though this game goes in the loss column for Chicago , this offense showed a ton of potential for the rest of the season.
United Kingdom's United Nations Ambassador Karen Pierce, far right, and Sweden's U.N. Ambassador Olof Skoog, center, listens as Russia's United Nations Ambassador Vasily Nebenzya, left, speaks during a meeting of the Security Council, Thursday Sept. 6, 2018 at U.N. headquarters.
The Russian foreign ministry has said that the names of the two suspects did "not mean anything to us". She has criticized London for turning down Moscow's request to see the case files. British authorities tried to prosecute Andrei Lugovoi, the man accused of poisoning former Russian spy Alexander Litvenenko, for around a decade.
Police say the men, both about 40, flew from Moscow to London two days before the Skripals were poisoned on March 4. "There can be no talk about that", Kremlin spokesman Dmitry Peskov was quoted as saying by TASS news agency.
Poland expelled four Russian diplomats as part of a coordinated worldwide response to the suspected nerve agent attack in Salisbury.
More than three months later, the bottle was found by a local man, 48-year-old Charlie Rowley.
Dawn Sturgess, who died in July.
Police are still trying to determine where the bottle was between the Skripal poisoning in March and its discovery by Rowley on June 27.
The charges announced on Wednesday relate to the first incident, but Mr Basu said officers continue to liaise with the CPS regarding the poisoning of Mr Rowley and Ms Sturgess.
British Prime Minister Theresa May on Wednesday underlined that "28 other countries, as well as North Atlantic Treaty Organisation, joined us in expelling a total of over 150 Russian intelligence officers: the largest collective expulsion ever", following the Salisbury attack.
The two men alleged to have been behind the March nerve agent poisoning - Alexander Petrov and Ruslan Boshirov - have been identified by the United Kingdom as members of the GRU, Russia's military intelligence service.