Terrorism is a form of violence in which a person or a group of terrorists takes hosts or makes barricades in public places in order to succeed distinct target. Terrorists may kill people or destroy buildings and other objects if their request is not accepted. Such groups may ask for money or other material compensation. In addition, they may require accepting the conditions of their political or social ideology that differentiates them from other types of criminals.
Domestic protest group may become a terrorist group when they try to satisfy their needs by means of force. For example, anti-abortionists can build barriers and organize unauthorized protest groups of riots. Such groups use violent methods of actions in order to accept their rules by the government or other distinct organizations.
So-called crisis negotiations began in 1970s when police detective Hervey Scholossberg understood the need of negotiating with instigators. One of the first hostage negotiation teams were implemented in SWAT (Special Weapons and Tactics). The murder of Israeli athletes during Olympic Games in Munich, Germany in 1972 and debacle of the 1971 Attica proved the need of developing more negotiation models. After some time, such communication developed into a strategic science.
It is important that both the negotiating team and tactical team work together to resolve a crisis incident successfully. Ideally, a risky situation with a help of professional police work ends up with everyone walking away as well as with imprisonment of the instigators.
Tactical team develops a strategy and hostage team tries to get in touch with terrorists or malefactors.