And that's why there is an investigation, not a trial. There is probably some indication of wrongdoing but insufficient evidence for prosecution. A verbal offer

And that's why there is an investigation, not a trial. There is probably some indication of wrongdoing but insufficient evidence for prosecution. A verbal offer may be difficult to prove, but far from impossible if there were witnesses or some sort of trail. Nobody has said there is proof of anything, but the government has grounds for suspicion. That is all. Presumably an investigation is warranted.