What does M-1 refer to in terms of body armor?

M-1 refers to body armor that is applicable if used in the commission of a felony. This term indicates that the specific type of armor may become relevant or subject to legal scrutiny in instances where it is associated with criminal activity. Law enforcement recognizes that certain body armors are governed by laws that come into play when they are worn during a crime, thereby emphasizing the connection between the use of such protective gear and legal ramifications. This classification underscores the importance of context in the use of body armor, particularly in terms of how it pertains to criminal behavior and its implications in law enforcement operations.

The other options reflect misconceptions about the nature and application of M-1 body armor. For instance, it is not limited solely to security personnel, nor is it exclusively restricted for law enforcement use. Additionally, while body armor can be related to civilian protection, M-1's designation highlights its relevance in legal discussions surrounding felonies rather than a standard protective measure for civilians.