MP Margaret Ferrier has been charged with culpable and reckless conduct over an alleged breach of Covid lockdown curbs.
The MP for Rutherglen and Hamilton West was suspended by the SNP in October after it was claimed she travelled by train from Scotland to London while experiencing symptoms of the disease.
She spoke in the House of Commons on September 28 and subsequently discovered she had tested positive for the virus, it is alleged.
Police Scotland has confirmed that Ferrier had been arrested on Monday and charged with the offence.
A spokesperson for the force told HuffPost UK: “We can confirm officers today arrested and charged a 60-year-old woman in connection with alleged culpable and reckless conduct.”
It comes after the Met Police decided to take no further action.
An SNP spokesperson said: “Ms Ferrier remains suspended from the SNP and we will not comment further on live police proceedings.”
Ferrier has resisted calls to resign as an MP, despite having the whip removed and numerous complaints from the public.
It comes as Scotland prepares to go into a full national lockdown from midnight, with schools to close until February 1, as the virus continues to surge.