Final answer:
The three elements of an immediate threat posed by a person are Ability (the means or skills to act), Intent (the determination to use those abilities), and Opportunity (the situation that allows for the action to take place).
Step-by-step explanation:
The three elements of an immediate threat that a person may pose are commonly referred to as the Ability, Intent, and Opportunity. These factors assess an individual's potential to follow through on a threatening action. In other words, a person must have the Ability to carry out a threat, the Intent to actually do it, and the Opportunity to execute the action.
Ability covers whether the person has the physical means or skills necessary to act on their threat. Intent involves the determination and willingness of the person to use those abilities. Opportunity refers to the situation or context that must exist for the person to act on their threat. These elements are often used in the evaluation of risks and threats in various fields, including law enforcement, security assessment, and psychology.