Alleged leaks of the statements made to the FIA by Nelson Piquet Jr., Flavio Briatore and Pat Symonds paint a bleak picture of the incidents at the 2008 Singapore Grand Prix for the Renault team.
Nelson alleges that he was ordered to crash by the team, with detailed instruction on the lap and corner that would ensure the right result. He agreed to go along with the plan because it would secure his drive in 2009.
On the other hand Pat Symonds alleges that Nelson came to the team and offered to crash to guarantee the right result.
Now it doesn't take a rocket scientist to see that the latter story is so incredible as to be beyond credibility itself. Given that the team admit that the conversation happened then its clear that the former scenario is far more likely.
If the World Motor Sports Council agrees then I suspect that the FIA will need to deliver the sort of penalty that makes headlines on the front pages of the newspapers. The closest comparitive incident I can think of involves the Toyota WRC team in the eighties who modified turbocharger wastegates in order to gain rally winning performance. In that instance Toyota were banned for two years, an appropriate sentence for Renault's crime I feel.
The worry for the FIA must be the danger that Renault will pull the plug on its team if found guilty making any ban worthless.