An intentional injury would involve someone using a gun on another person or themselves to cause serious injury or death, there is the intent to harm and usually involves illegal possessions of a gun. Gun registration laws are in place to prevent this happening.
B. Unintentional injury - Motorcycle helmet laws
An unintentional injury would involve someone being involved in a accident that causes them harm. There is no intent to harm but it happens as a result of an event. Motorcycle helmet laws are in place to prevent injury from happening in such types of accidents.
I think it's because they need to be ready to help customers with questions and concerns regarding different medications, as well as watching out for signs of medication abuse.
