「情境犯罪預防理論」指出：利用減少犯罪機會及標的對象受到防衛是可以預防犯罪的。由於綁架與暴力犯罪事件層出不窮，使得「人身安全護衛」需求逐年增加，變成私人保全業務中的一種型態。人身安全護衛的方式，對特定的「人」或指定之「處所」、「交通工具」、「物品」實施安全維護工作，使受保護「標的物」不受到任何形式的侵害與騷擾。人身人安全護衛俗稱「貼身保鏢」，堪稱目前各類保全人員中門檻最高的一類，一般企業主對於人身安全護衛要求，需具有軍、警或國安人員背景或有跆拳道、柔道健身型教練、武術老師等戰技專長。更遑論以隨機殺人案件來做探討，利用的Clarke情境犯罪理論的5種層面為指標，假設如果有歹徒可能會遇到的情況來辨識，「提升犯罪阻力」、「提升犯罪風險」、「減低犯罪誘因」、「減少犯罪刺激」、「移除犯罪藉口」等五種指標，探討人身安全護衛從事客戶人身護衛工作，對可能發生的攻擊所衍生受傷或死亡的結果，本身認知並自信可順利完成工作的特質；以及人身安全護衛在保護客戶主安全勤務過程中如何運用安危策略以降低、避免被害風險。

Personal safety protects one of the private preservation types. Personal safety and security, and to carry out safe maintenance work on specific "people" or designated "premises", "vehicles" and "goods", so that protected "subject matter" is not subject to any form of infringement and harassment. Personal safety guard known as "personal bodyguard", called the current level of the highest level of security personnel in a class, the general business owners for personal safety requirements, need to have a military, police or national security background or Taekwondo, judo fitness coach, Martial arts teachers and other combat skills expertise. Not to mention the random murder case to do the discussion, the use of Clarke situational crime theory of the five levels as indicators, Assuming that there are five types of indicators such as "raising crime resistance", "raising crime risk", "reducing crime", "reducing crime" and "removing crime excuse", if there are cases that criminals may encounter, To explore the safety of personal safety guards engaged in personal care work, the possible attack on the injury or death caused by the results of their own cognitive and self-confidence can successfully complete the work of the characteristics; As well as personal safety guards in the protection of customer safety work in the process of how to use safety strategy to reduce the risk of injury.