维护社会治安,保障公共安全,预防控制犯罪,打击敌对势力和各种犯罪活动是公安队伍的基本职能。多年来,许多公安民警在打击和制止各种犯罪行为的斗争中流血牺牲,充分体现了他们对党和人民的忠诚和无私无畏的精神。同时,我们也应该认识到,有些伤亡原本是可以避免的。 Maintaining social order, safeguarding public security, preventing and controlling crime, and cracking down hostile forces and various criminal activities are the basic functions of public security contingents. Over the years, many police officers and men have been bloody and sacrificial in their fight against and criminalizing various crimes, fully demonstrating their loyalty and selflessness toward the party and the people. At the same time, we should also recognize that some of the casualties were originally avoidable.