Communities Secretary Eric Pickles told ITV News that "there would be a process" in investigating claims that the Energy Select Committee Chairman Tim Yeo coached a paying client on how to influence his committee.
Mr Pickles said: "We have a process of dealing with allegations of this process, and normally we wait until that has been concluded".
More top news
The 19-year-old was rushed to hospital by friends, but died a short time later.
The launch was delayed for about two weeks because of bad weather and a mechanical problem.
Some details of the hearing, such as the order of their appearance, remain in negotiation.