The woman herself was a victim of the kind of crime that you're saying justifies treating her in such a poor way! I'd call your excuse-making ironic, if it wasn't in such bad taste. She's wasn't the one responsible for missing and murdered aboriginal women, yet she appeared in court in shackles like the dangerous offender who committed the crime against her. 

There is no justification for treating a witness, let alone a victim of a crime, in the manner in which she was treated. That's why the judge who eventually convicted the perpetrator said her treatment at the preliminary hearing was "appalling." I hope the public will take his first-hand knowledge of the matter over your rationalizations.