Can someone represent my wife at traffic court in Allentown on Thursday afternoon?

I agree with the suggestion made to you by Mr. Hasson.

Can I purchase a firearm in Indiana with Misdemeanor charge?

You'll have to consult with a criminal defense attorney from Indiana to find out what the state statutes say about your situation.

My significant other has been charged with 18-4-203(1) F4 and 18-4-501(1),(4)(d) F6. What are his options?

Your significant other is in serious need of a defense attorney. I would urge that an attorney be retained as soon as possible.

Can a person receive jail time for unknowingly failing to register as a sex offender?

I think you'll have an extremely difficult time telling the judge that you did "not know" that you were required to register. Yes a person can be...

How long does the granjurey have to indite em if im in jail?

Hire a defense attorney or you may be sitting in jail for awhile.

Do police officers have immunity to Contempt of Court if they disregard a court order?

No they do not have immunity for a Contempt of Court charge.

It's a matter of judgment by the court. Was the gun used as a weapon to inflict harm? If so then it could be considered a weapon.

How many days I will be put in jail and what is the fines?

No guarantee on the jail time but the fines will be quite substantial.

FTA Bench warrant?

You have to track down the warrant and then deal with it.

What do you recommend for someone who is on probation and wants to go into a treatment center for alcoholism?

If you need to get help do it. Notify your probation officer where you are.