The man cleared of the 29 murders in the Omagh bombing is to seek damages from the father of a boy killed in the atrocity.
Lawyers for 38-year-old Sean Hoey are also considering taking legal action against the Public Prosecution Service for taking the case against him.
Mr Hoey has been angered by comments made by Victor Barker, whose 12-year-old son James died in the bomb in the Co Tyrone town on August 15, 1998, after yesterday's judgment.
Kevin Winters, Mr Hoey's legal representative, said Mr Barker's remarks, carried by certain media outlets, were actionable.
"Sean Hoey refutes completely the allegations made by Victor Barker," said Mr Winters.
"The comments made yesterday and repeated in some newspapers will be actionable.
"In addition we are considering a malicious prosecution civil action against the prosecuting authorities following yesterday's judgment."
Mr Hoey, an electrician from Jonesborough, was cleared of 56 charges relating to Omagh and other dissident republican bomb attacks in Belfast Crown Court yesterday.