If you witnessed an assault then you need to report it to the police or otherwise you can be charged as an accomplice.
Unless you activiely participated in the crime then you did nothing wrong.
However you are a primary witness, and should cooperate with authorities to ensure the perpitrators are punished. Some may suspect you were involved based on your proximity to the crime; but by cooperating you can demonstrate that you were not involved.
Any child who is over "the age of reason" (usually set at somewhere around 7 years of age) can be charged with an offense.
Defending another person is not a crime. You could be charged criminally if you committed assault or battery. Whether this happened is not clear from the question.
Yes, they can be charged with assault. They may even be charged as an adult.
They should be charged with assault.
It depends on the state. Some do not allow "assault on assault" charges.
Assault and battery is what you would be charged with.
Either assault or attempted murder. If you used a weapon it would be assault with a weapon/deadly weapon.
If you were charged with a felony assault and the charges were dropped, you do not have a criminal record. The charges can be picked up by the state at a later date.
Assault, ABH, GBH, RABH, attempted murder, man slaughter.
Depends what country you are in
Yes, a person is still bondable after being charged with an assault. A person is only unable to get bonded if charged with a felony.
In addition to violating health department laws - business licensing violations - zoning violations - and the possibility of being charged with "assault" you're porobably looking at somewhere arounda year or so. In addition - if you really screw up and give a tat to a minor, in addition to being charged with "assault" on a minor you can be sued in civil court.