The Naval Criminal Investigative Service [NCIS] is a worldwide federal law enforcement organization whose mission is to protect and serve the Navy and Marine Corps and their famalies.

• 海军犯罪调查机构,简称NCIS，是一个世界性的，任务为保护和服务于海军以及海军陆战队的军人及其家庭的联邦执法机构。