Overview
A hostage is a person seized by an abductor in order to compel another party, one which places a high value on the liberty, well-being and safety of the person seized—such as a relative, employer, law enforcement, or government—to act, or refrain from acting, in a certain way, often under threat of serious physical harm or death to the hostage(s) after expiration of an ultimatum. The Encyclopædia Britannica Eleventh Edition defines a hostage as "a person who is handed over by one of two belligerent parties to the other or seized as security for the carrying out of an agreement, or as a preventive measure against certain acts of war."
A party who seizes one or more hostages is known as a hostage-taker; if the hostages are present voluntarily, then the receiver is known as a host.
In civil society, along with kidnapping for ransom and human trafficking (often willing to ransom its captives when lucrative or to trade on influence), hostage taking is a criminal activity. In the military context, hostages are distinct from prisoners of war—despite prisoners being used as collateral in prisoner exchange—and hostage taking is regarded as a war crime.
On occasion, hostage taking is an impulsive act of desperation, as when a criminal act goes awry, the criminal has lethal force available, and a bystander becomes hasty collateral, despite the prospects for evading justice remaining poor, now soon surrounded by lethal force with intent as well as criminal prosecution for a serious additional crime, should the hostage taker survive the escalated stand-off (not always the intent; see suicide by cop). These confrontations are extremely dramatic, and are prominent in the public eye, despite being rather uncommon. Hostage taking is sometimes the only way to enact a plan, hence tactical, such as certain forms of prison escape, especially as treated in film.
From Wikipedia (CC BY-SA 4.0).