Criminal trials for charges of murder and other serious crimes would be conducted in the state court system unless the charges involved multiple states, non-citizen immigrants, or a foreign ambassador state court system unless the investigation of the case involved the highest executive agencies in the state federal court system unless the investigation of the case required a majority of state resources federal court system unless the charges were limited to actions that violated state laws

I believe the answer is: state court system unless the charges involved multiple states, non-citizen immigrants, or a foreign ambassador

Multiple state criminal actions usually thrown to the federal court system, violation by Non-citizens immigrants is usually punished directly by deportation, and foreign ambassadors cannot be prosecuted in any way since the law in foreign country is not applicable to them.

abu bakr, was a senior companion and—through his daughter aisha—a father-in-law of the islamic prophet muhammad. abu bakr became the first openly declared muslim outside muhammad's family. abu bakr served as a trusted advisor to muhammad.