Except the first point, which is that it was public property. The arrest was determined to have been invalid based on that alone.
“Except the first point, which is that it was public property.”
You can be arrested for trespassing on public property. It happens all the time.
“The arrest was determined to have been invalid based on that alone.”
Perhaps, but that doesn’t mean the court was correct. If she was in an area she wasn’t supposed to be and refused to leave when asked, then it was a perfectly proper trespassing arrest, whether the courts agree or not. The courts judge facts but they don’t determine reality.