自今年 6月份，山东省惠民县保安服务公司实行“四联三卡”责任制，大力推进保安工作。旨在提高保安队伍管理水平、促进保安工作健康发展。“四联”是指： 1强化领导责任制，实行保安服务公司与保安客户单位联管，对保安工作共同监督管理。 2严格部门责任制，实行部门之间 Since June this year, Huimin County, Shandong Province, the implementation of security services company “quadruple three cards” responsibility system, vigorously promote security work. The purpose is to improve the management level of security personnel and promote the sound development of security work. “Quadruple” refers to: 1) Strengthen the leadership responsibility system, the implementation of security service companies and security client units in charge of the joint supervision and management of security work. 2 Strict departmental responsibility system, between departments