london
The SNP leader says she hopes Ferrier "will do the right thing" after taking a train from Glasgow to London and back with coronavirus.
The London mayor has urged Boris Johnson to "realise we're on the same side" and set aside party politics in the face of coronavirus.
The company will be granted a new licence to operate in the capital.
A scientist advising the government also said he had "never heard" the measure discussed at Sage meetings.
Sadiq Khan has warned “additional measures” may be needed to tackle the virus in the capital.
Danny Kruger was caught breaking the rules on a journey into London, by a member of the public.
An inquest into the 35-year-old's death is currently ongoing.
Scuffles broke out between demonstrators and police at an anti-vaccination and anti-lockdown protest at London’s Trafalgar Square.
“I am of the firm view that we should not wait, as happened six months ago, for this virus to again spiral out of control before taking action."
It comes as reports say health chiefs fear a second wave of coronavirus could take hold in the capital.