......The HO decided it was important enough to spend 12 mill...I wonder who decided it wasnt important enough for a JIT....probably portugal
I think you may be correct that there was resistance by one of the parties to setting up a JIT... certainly there was no problem regarding English and French cooperation in the Alps murder of British citizens ...
SnipSurrey Police said it was continuing to provide support to the French investigation as part of the joint investigation team (JIT) established following the deaths.
It said officers had worked closely with the French authorities to progress a number of lines of enquiry in the UK.
https://www.bbc.co.uk/news/uk-england-surrey-41150373It certainly appears that there was interest in England that Madeleine's case might benefit in the same way. So in my opinion if a JIT didn't happen it was because one of the authorities didn't want it to happen and I believe lack of one added more time to an investigation which had been ignored for too many years already.
In my opinion the resultant hold ups could only have had a detrimental effect as far as Madeleine was concerned.
SnipOn Wednesday, Sir Bernard Hogan-Howe said: "One thing we'd like to see in the future is a joint investigation team which comes under the European community. It is a possibility legally, and we're working together at a political level and at a police and judicial level to see how we can construct that.
"There are two separate inquiries with a different focus – we've got one particular set of lines of inquiry and they have a different one. But it's important that we work together on what is clearly a common problem.
"It's a formal arrangement, it allows officers from each country to work in the other country, it gives them powers associated with that, and it's an efficient way of doing it.
"If you're not careful, you end up doing things on an ad-hoc basis, and for us it would be better to have that type of arrangement. So that's what we're trying to get agreement between the two governments and the two police services."
https://www.theguardian.com/uk-news/2013/nov/27/madeleine-mccann-inquiry-police-work-together-met