Paul Flowers' solicitor says his client has been "hounded" by the press since his alleged drug possession was reported in the media.
Speaking outside Stainbeck Police Station in Leeds, Andrew Hollas said: "I think it's been self-evident that he has been hounded for six months by certain elements of the press and they have included many allegations within their papers that have been completely without foundation."
He told reporters that the former Co-op Bank chairman would make a "full statement" following his appearance at Leeds Magistrates' Court on May 7.
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Arthur Simpson-Kent, 48, admitted killing Ms Blake and their sons according to his lawyer.
Two brothers have been arrested on suspicion of murder after their parents were found dead in their own home over the weekend.
The first man to be convicted of murder on the basis of DNA evidence should be moved to an open prison, according to the Parole Board.