Questions re Court Process (Magistrates Court)

Basic Details:

2x traffic infringements
-Specifically contesting "fail to stop for yellow traffic light"

Self-represented.

Additionally, Notice to Appear issued to me for my initial summary hearing was not signed or dated by the issuing officer.

I have already had my summary hearing at Magistrates Court. Tried to ask the question as to whether my Notice to Appear was valid in the first place. Was cut off and made to feel like I was wasting time - eg. "We are very busy here. What do you want to plead for your charges?"

Plead guilty for one charge, not guilty for the yellow light --> Informed the issue now to go to a trial.

Obtained Brief of Evidence and the video evidence provided by issuing officer actually reinforces my argument of not being able to stop safely before the stop line/intersection when accounting for the timing of the yellow light.

Next step is trial review.

I have 3x questions:

  1. Does the incorrectly completed NTA in fact make the whole hearing null and void?
    Police Powers and Responsibilities Act 2000, Section 384, Subsection 1f states: "A notice to appear must be signed by the police officer serving the notice to appear"

  2. What exactly is a "Trial Review" and what is its purpose?

  3. Do I have to re-submit the video evidence I obtained in the brief of evidence from my end to be able to use it to explain how it supports my defense? Or can I just refer to it on the day?