Final answer:
MIP stands for Minor in Possession, and it generally can be proved by either actual possession, where the minor physically holds alcohol, or constructive possession, where the minor has access to and control over alcohol.
Step-by-step explanation:
MIP, or Minor in Possession, refers to legal infractions that involve individuals under the legal drinking age possessing alcohol. There are two common ways an individual can be found guilty of MIP. The first way is through actual possession, which occurs when a minor is caught holding alcohol, or it is found on their person, such as in their pockets. The second way is through constructive possession, a legal concept where a minor can be charged with MIP if they have access to alcohol and the ability to control it, even if not found directly on their person—for example, having alcohol in their car or in their bedroom.