https://en.wikipedia.org/wiki/Arguido
I objected to this statement "Therefore none of the McCann's statements non arguido could be used as evidence against them", for the non arguido statements must be the truth and if they were proven false they could be prosecuted for lying.
"the arguido must be presented with whatever evidence is held against them,[7] and unlike a witness has the right to remain silent,[8] not to answer any question that may incriminate the person, and does not face legal action for lying.[9]"
It's. Under comparison with common law systems
What you are referring to is perverting the course of justice which is exactly the same in the British system
Go further in to the article and it compares arguido with evidence under caution and Miranda rights and discusses the inadmissibility of evidence
Arguido s can be asked questions which could incriminate them which implies witnesses can't
Same as interview under caution
I reckon I'm right rob