What would happen if someone underage gets caught driving high?

He will be arrested and charged with multiple criminal offenses.

Speeding ticket

what do you mean by "charges of this case".

How many points for back seat pass age 8-15 no/ impropr seat belt ?

3 points each so you should probably take it seriously. An attorney can go to court instead of you and sort it out.

Can an officer void a traffic ticket and write a new one after I've been arraigned?

Yes they can. Consider retaining a local attorney to help you out.

How can I get out of a speeding ticket I got two and a half years ago?

There may be speedy trial issue here. An attorney can go court instead of you and is in best position to get you the best result.

sounds like you may have a case. the ticket can be disputed here https://www1.nyc.gov/site/finance/vehicles/dispute-web.page

Hire a local traffic ticket attorney that will go to court instead of you and ensure you do not get points. This violation can cause steep hikes in...

What can I do if I got a reckless ticket in Virginia if I live in NY?

Contact a traffic ticket attorney that is local to the area where you got the ticket.

Traffic ticket in NY with IL?

My understanding is that it transfers to Illinois but an Illinois attorney would know better. Either way it makes sense to hire an attorney to...

How do I prove that I fixed an issue with my break light?

You can use this form https://www.dot.ny.gov/divisions/operating/osss/repository/STATEMENT%20OF%20CORRECTION.pdf