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".
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The father-of-four from Cardiff with appear in court this afternoon charged with terrorism-related murder and attempted murder.
Loyalist paramilitary commander turned supergrass Gary Haggarty has pleaded guilty to 200 terrorist offences, including five murders.
European Commission President Jean-Claude Juncker says the Prime Minister's 'fair and serious' offer to EU nationals doesn't go far enough.