It is almost 100% certain that he will serve the remainder of his sentence (on which he received probation) in jail, PLUS whatever sentence he may receive after being tried on the new offense.
There is also the real possibility he will be sentenced as an habitual offender, which in some jurisdictions will double his sentence.
Probation violations are not subject to a statute of limitations. You can be charged with the violation at any time.
If you are referring stictly to a Violation of Probation charge (VOP) then you can't charged with a VOP if you're NOT on probation. However, you can "violate" any law at any time and be charged with the offense.
If you are arrested for a crime in a different county, the county you're arrested in will run your record and discover that you are on probation. There's a very high possibility they will contact your probation officer, who will then recommend you be charged with probation violation. It is, also, most likely that a condition of your probation is to contact your PO when you're contacted by law enforcement. Not doing so is a violation of probation. The most likely result is that you'll be charged for the new crime in the new county, and charged for the probation violation in the county in which your probation office is located. Keep in mind that the probation office holds jurisdiction over the entire state; not just the one county.
yes, it is a separate charge
Most probation have a condition that you not be charged with additional crimes for the duration of your probation. It is possible, if your crimes are unrelated in nature, that it may not be a violation, but it seems likely that DUI is a violation of common probation terms. Even though you are unsupervised, it's not as if they won't check on your record periodically.
Violation of Probation is the least of your problems. You were in in what is known as "Concurrent Possession" of the firearms because they were secreted in your house. You stand a good chance of being charged as a Convicted Felon In Possession of Firearms.
He will have a set period of probation which is called a suspended sentence. If he completes his probation without getting in more trouble or getting a violation of probation then the charges will be dropped at the end of the probation period.
Probation itself IS a sentence. If you abide by all the conditions of the probation sentence you will remain free of jail. If you violate the condition(s) of your probation your freedom can be revoked and you can be remanded to jail to serve the remainder of the term of your sentence.
You can be charged for certain behavior that occurs when you have over-consumed, such as disorderly conduct in a public place, DUI, any damage to person or property. If you sit in your home and drink yourself into a coma, that, in and of itself is not a "crime". If you happen to be on probation that prohibits alcohol consumption as one of its terms, to drink is a violation of that probation and you can be charged as such.
There is no such thing as a statute of limitations related to violating parole. A statute of limitations is related to bringing a law suit. You can be arrested at any time for the rest of your life.
Unless you successfully petition the court to have your probation transferred to your new state of residence, I wouldn't if I were you. You'd be charged with "Violation of Probation" and when eventually arrested and returned, you would quite possibly have your probation revoked and sent to jail to serve out the remainder of your sentence behind bars.
Did you mean to say that you were released on PAROLE? Regardless. . . if you violate the provisions of your release you can be returned to confinement to serve the remainder of your sentence.