Massachusetts General Laws Chapter 265 Section 15A.
To convict someone of this crime the district attorney must prove:
- The defendant touched someone else, however slightly and did so without an excuse or the right to do so;
- The touching was intentional, not by accident or with negligence;
- The touching was done with a dangerous weapon.
Intent to cause an injury does not matter, just intent to commit the act. Any touching is sufficient, if done with a dangerous weapon. Just about anything qualifies as a dangerous weapon if the district attorney can prove that the instrument was used as a weapon. Pencils or pens, hockey sticks, shoes, nearly anything can be a dangerous weapon.
Certain weapons are always considered dangerous. Inherently dangerous weapons do not need to be used in a dangerous fashion, including firearms.