Semiotics [edit]. In semiotics (the study of signs or symbolism), salience refers to the relative importance or prominence of a part of a sign.
How to Become a U.S. Marshal. The United States Marshal Service is the Department of Justice agency that is responsible for protecting the judicial system. They ensure that justice can be carried out without threat to court buildings, court officers, witnesses, or anyone else involved in trials.
A law enforcement officer (LEO) is any individual who is sworn in as a police officer, sheriff deputy, state trooper, or a federal agent to enforce the laws of the jurisdiction he or she serves. Some other careers that are considered LEO positions include: Air Marshal.