The British Medical Journal used the Freedom of Information Act to investigate whistleblowing in hospitals. report:

Whistleblowing is in the news today after a health service manager alleged that he was gagged by the NHS from speaking out over patient safety.

Three years ago the British Medical Journal investigated hospital whistleblowing policies.

The investigation involved asking hospitals for a copies of whistleblowing policies and using the Freedom of Information act, then entering the information into a spreadsheet and analysing the data.

You can read the full story here. 

I am a journalist and author. I am a journalist at the UK edition of WIRED magazine. In 2015, my first book Freedom of Information: A Practical Guide for UK Journalists, was published. My second book Reed Hastings: Building Netflix, was published in March 2020. I created FOI Directory in 2012 and have maintained it in my spare time ever since.