Actually the defence has the evidence too under the inquisitorial system.
Snip
In both France and Germany the investigating magistrate will recommend a
trial only if he is sure that there is sufficient evidence of guilt. The entire dossier of the pretrial proceedings is made available to the defense.
Inquisitorial procedure, in law, one of the two methods of exposing evidence in court (the other being the adversary procedure; q.v.). The inquisitorial system is typical of countries that base their legal systems on civil or Roman law. Under the inquisitorial procedure, the pretrial hearing for
www.britannica.com
Which makes the interim decision to withdraw the arrest warrant in the middle of the trial even stranger for those of us used to an adversarial trial system. Trials do sometimes collapse for various reasons but in this event, the trial continues.
Strange
My opinion
Forgot to mention that according to the above, should CB wish to speak that is fine but " if he does,
he is not put under oath." Definitely quite different.