What is it they have done to make you think they appear to have learned nothing about PI's?
As we don't know all the details re Halligan - we don't know what the McCanns priorities were at the time. I can understand why they were careful what they said about him before he was tried and found guilty as charged. At the time Kate wrote her book he was still on remand in Ireland - fighting extradition to the USA and denying all the charges. They could not see into the future and so publicly making accusations against him may well have been libellous at that time.
I think it goes without saying that they would be deeply upset about his criminal activities when it came to the fund. Why anyone would think anything other than that is beyond me.
Even if their priorities were different to yours - doesn't automatically make them wrong - it just makes them different to yours.
AIMHO
They have hired PI's without, it seems, making sure they had a track record of success in similar cases, despite newspaper reports suggesting otherwise. Metodo 3 came with lots of warnings which the McCanns blithely appeared to ignore;
"Kate and Gerry now have
great faith in Metodo and are very impressed with its record.[News of the World 28 October 2007]
They were selected to help with the search for Madeleine on the basis of
a proven history of resolving cases in the Iberian peninsula [Official Find Madeleine website]
In a raid on Metodo 3's Barcelona offices, police seized handguns, ammunition, listening equipment, cassettes and transcripts of taped phone calls. But the 1995 case was dropped by a judge after defence lawyers levelled accusations of police entrapment. [Daily Mail 25 November 2007]
Manuel Marlaska, a journalist from Spain's best-known investigative magazine Interviu, says: "They are the most prestigious detective agency in Spain.
"But the work they are doing now seems strange.
They do not have any experience of working with such a high-profile case as that of Madeleine McCann. [Mail on Sunday 2 November 2007]
there is no suggestion of missing persons, or even cases outside the commercial sphere. Indeed, in a 2003 interview, Francisco Marco said:
"As we're not specialists in dealing with private individuals, we stayed away from this area.
"Our focus is companies. [Mail on Sunday 2 December 2007]
http://www.gerrymccannsblogs.co.uk/Nigel/id76.htm