No Dave, it was because her lawyer thought her guilty considering all the evidence the PJ had against them. To quote Kate again from her book...
"If you were Portuguese,’ Carlos said with an air of resignation, ‘this would be enough to put you in prison."
So there you have it, one Law for the Portuguese and another for HM citizens.
All what evidence?
The PJ's claim to Carlos that samples from the apartment and the car had revealed Madeleine's blood?
The crumpled page the police had discovered in her friends bible which they appeared to think was her bible?
The fact that she had asked for a priest? Apparently people in Portugal don't talk to priests in times of need as we do in this country, only when they want forgiveness.
A witness claimed to have seen them both carrying a big black bag and acting suspiciously? The fact that this was untrue, and it would have been a case of one person's word against another - apparently didn't matter.
---------------------
The above is the 'evidence Carlos was referring to when he said it was enough to put them in prison!
All I can say is if that's what they consider to be 'evidence' sufficient to put someone in prison in Portugal - then I'm gobsmacked.
I'm surprised that list of 'evidence' didn't include Amarals belief that saying... 'we've let someone down'.. is another way for UK doctors to say someone has died - IIRC.
Not only did they have an arguido suspected of being implicated in torture as lead investigator - as well as the language barrier to contend with - and being subjected to a vicious campaign via the press - they also had the differences in our cultures actually being used as evidence against them.
Unbelievable ignorance and incompetence IMO. No wonder the McCanns despaired at that moment.