襲警事件之發生，係警察執勤力與對象危險性交互影響的結果。警察的執勤力表現在：一、執法能力的好壞；二、執勤態度的良窳；三、危機意識的高低；四、執勤裝備的優劣。對象的危險性表現在：一、本身的惡性；二、人數多寡與組織力；三、行為時地；四、所受刺激。因為發生嚴重襲警者，主要是高危險性的對象對低執勤力的警察，而非高危險性的對象對高執勤力的警察，甚至低危險性的對象對低執勤力的警察，亦會發生輕微的襲警。可知，是否導致襲警事件，警察本身的影響力遠大於執勤對象。

Assaults on police officers occur when the police have negative interactions when dealing with dangerous targets. The police’s performance depends on: (a) the capability of enforcing laws and regulations; (b) their work attitude; (c) sensitivity to danger; (d) the quality of their equipment. The dangers of the target can be seen in: (a) his/her viciousness; (b) the number of persons and organizational force; (c) the time and environment; and (d) outside harassment. When serious assaults on a police officer occur, it is more likely that it is the product of a negative interaction between highly dangerous individuals and an incapable police force, rather than between highly dangerous individuals and a capable police force. Even when incapable police confront less dangerous individuals, frivolous assaults on police officers could still happen. The occurrence of assaulting police case is contingent on the capability of the police to carry out their duties.