The former detective constable has begun a civil claim against Scotland Yard seeking damages for psychiatric injury arising from work-related stress.
Mr Wedger said he was bullied after filing an intelligence report alleging that some of his colleagues knew a prostitute was pimping out girls as young as nine but turned a blind eye.
He claimed he was told by a high-ranking Met officer to keep quiet or be “thrown to the wolves”.
Last night father-of-four Mr Wedger said: “I joined the police to serve the community and make a difference. I have wholeheartedly, loyally and relentlessly pursued, arrested and prosecuted those I was tasked to target.