From Zaghari-Ratcliffe‘s wikipedia page.
// Boris Johnson mistake
A central part of Zaghari-Ratcliffe's defence was that she was there on a holiday and never worked to train journalists in the country.
However, on 1 November 2017, the then-British Foreign Secretary Boris Johnson said "When we look at what Nazanin Zaghari-Ratcliffe was doing, she was simply teaching people journalism, as I understand it, at the very limit. These remarks appear to have put her at risk.
Her employer, Thomson Reuters Foundation, called on Johnson to "immediately correct the serious mistake he made" in this statement. They added "She is not a journalist and has never trained journalists at the Thomson Reuters Foundation". Four days later, Zaghari-Ratcliffe was returned to court in Iran where the Foreign Secretary's statement was cited as evidence against her. //
https://en.wikipedia.org/wiki/Nazanin_Zaghari-Ratcliffe