Reports that traders have routinely manipulated the wholesale gas market must be immediately and vigorously investigated. That investigation must establish whether such manipulation has taken place, whether it was a single incident, whether, as reported, this is 'taking place on a regular basis' and which individuals and companies may have been responsible.
If such an investigation exposes a culture of manipulation then the structure and operation of the market is in question, not just the behaviour of rogue traders.
A former energy trader has told ITV News the electricity market has been rigged and it is "worse" than the gas market.
Another market, another investigation. The Energy and City watchdogs start investigations into allegations of traders fixing the gas price.