Principally they are looking at the publications in The Express Group: The Daily Express, The Sunday Express, The Daily Star and The Daily Star Sunday.
Clarence Mitchell, the spokesman for the McCann family, confirmed that their lawyers were in discussions, but denied that any writs had yet been issued.
"It's wrong to say that we're actually suing, but our lawyers have been assessing all articles, in all papers. We are extremely unhappy with The Express Group's coverage. We always said it was the worst amongst all the tabloids."He also added that the figures that have been quoted in the media are wildly speculative and that The Express Group had made no initial offer for an out-of-court settlement.
Under UK law, the McCanns and their lawyers have a year from the publication of an article to decide whether they wish to take legal action against its content.