She said that journalism is not about remaining impartial.
Striking a balance between developing insider contacts and remaining impartial is a challenge innate to journalism.
Ms. Brier said: "Our job is to remain impartial.
From my training in law school to my years as a prosecutor, I was taught that Lady Justice draped a blindfold across her eyes because she was a stalwart of equality, remaining impartial in all situations, and judging facts instead of people.
The former foreign correspondent - who is going to Sudan at the weekend for a special report - said that although the BBC has strict guidelines on remaining impartial, he is open about having to make judgments on his new show World News Today.
Sports commentators are supposed to remain impartial, but for the BBC's Colin Jackson, Denise Lewis and Michael Johnson, British athlete Mo Farah's impressive win in the 10,000 metres was all a bit too much.
They are supposed to remain impartial even while running as partisans.
The mails showed that officials, who are meant to remain impartial, favoured Hillary Clinton and discussed ways to undermine her rival, Bernie Sanders.
Broadcasters, unlike the press, are required to remain impartial, and Sky News has built a formidable reputation, named Royal Television Society news channel of the year seven times in the past nine years.
No, I've never had any problem remaining impartial.
I can't say what I feel about it personally, as it's important to remain impartial in our profession, but the photographer didn't feel the police were heavy handed.
