The answer to this question depends on many things including the actual weight of the marijuana, statements made to law enforcement by your son and his friend, the facts surrounding the initial stop of the vehicle, and much more. There is also a possibility that if this is his first arrest, a pre trial diversion program is available or the charge can be reduced to a misdemeanor possession of marijuana charge.
My office offers free consultations in these cases. In any event, hire an...
We need much more information to answer this question. What would you take the lie detector for? Is it for a violation of probation of Community Control? For the original charge? What was the charge and what are you being violated for?
All these things and more need to be discussed with a criminal defense attorney, even if you feel you were scammed by the first one. Please get an attorney.
You should discuss this with a criminal defense attorney in Maryland. Hopefully the court will allow some plea in absentia (written plea to the court sworn to by you and submitted to the judge) without the execution of the warrant.
Try the Maryland Bar Association website to find an attorney in the county where your charges are pending.
I agree with everything Mr. Kleiman says, not much to add. Many times the appearance at the arraignment is waived if a NOA has been filed, also, if he is in custody in Sarasota County, the prosecutor was probably aware and advised the court of that fact.
Unfortunately, the State decides whether to press charges or not in Florida. If he is being arraigned tomorrow, that means that the State has filed charges. You should go to the arraignment and try to speak with the prosecutor. Tell him or her your position on the case.
If you can not talk with the prosecutor, write a letter to the State Attorneys Office explaining your position. Do not discuss the facts of the case in that letter.
Best of luck and stay safe.