The Met police said that they had referred the case to Police Scotland.
England and Scotland have enacted different regulations in their attempts to restrict the spread of the CCP virus, commonly referred to as the coronavirus.
Ferrier, who is the MP for Rutherglen and Hamilton West was tested on Sept. 26 in Scotland due to a “tickly throat.”
The Met police said that they had investigated whether her subsequent train journey back to Glasgow breached the requirement in law to self-isolate: namely Reg. 11(2) of the Health Protection Regulations 2020.
“On detailed examination of this new legislation, and following legal advice, it was concluded that this regulation is applicable only after the 28th September 2020,” said the Met statement. “In this case the test occurred prior to the 29th September 2020 and therefore the regulation does not apply.”
Ferrier was expelled from the Scottish National Party for her actions but has rejected the calls for her to step down as a Member of Parliament.
She admitted it had been “a serious error of judgment” but said she wanted to continue serving her constituents.
She said that the regulations “have changed and have been so muddled” in recent months, and appeared to suggest that the virus had made her act out of character. “You’re not thinking straight. At that moment, when I thought it would come back negative and it was positive, I was utterly shocked.”
But Ferrier could yet be forced to step down as a lawmaker.
Some MPs have suggested that Ferrier should now face a parliamentary inquiry, which could result in her suspension.