Article 8- Questioning of witnesses
The courts for serious crimes and the courts of appeal for serious crimes may permit that questioning of witnesses, as well as confrontations and permissible readings be performed under the following rules, either together or separately:
a) in the presence of the defendant and the defence attorney, but without visual contact;
b) without communicating to the defendant and the defence attorney the identity of the witness;
c) in certain other cases and ways, determined according to the legislation on the protection of witnesses and justice collaborators.
Fair trial standards
Rights during trial - legal assistance
Rights during trial - present at trial
Rights during trial - examine witnesses
Equality of arms
EDIT.