How to be a whistleblower in the workplace and keep your job

Blowing the whistle on malpractice within your organisation can have some pretty severe consequences: just ask Edward Snowden, who spent more than five weeks holed up in the transit zone of a Moscow airport and is facing charges in the US of espionage and theft.

But while it's not unusual for whistleblowers to face problems, it is possible to raise and pursue concerns while keeping your own reputation intact and your job secure - if you go about it the right way.