> They found a technicality on which they could arrest her, so they arrested her because they wanted to arrest her
If by technicality you mean correctly identifying that the judge intentionally adjourned the suspect's court proceedings and directed them through a non-public exit in order to evade a lawful deportation of a domestic abuser who had already been deported once, yes, it was a "technicality". The short form would be to acknowledge the judge intentionally interfered with a lawful deportation, which is a crime, thus the arrest.
If by technicality you mean correctly identifying that the judge intentionally adjourned the suspect's court proceedings and directed them through a non-public exit in order to evade a lawful deportation of a domestic abuser who had already been deported once, yes, it was a "technicality". The short form would be to acknowledge the judge intentionally interfered with a lawful deportation, which is a crime, thus the arrest.