the act of providing assistance or support to someone or something
增援, 支持
当情况变得太危险时，我们不得不呼叫支援。
a drawing of a person, usually a suspect, made by combining descriptions from witnesses
合成画像, 组合素描
目击者帮助创建了合成素描。
a sign, fact, or piece of information that helps someone discover the answer to a problem, mystery, or question
线索
a criminal investigation that has remained unsolved for a significant period and lacks recent investigative leads
悬案, 冷案
DNA技术的进步最近帮助解决了许多以前被认为无法解决的悬案。
based on indirect evidence rather than direct proof
间接的, 情况性的
他们只有间接证据。
an organized search by police for a person wanted for a crime
追捕, 警方搜查
抢劫后，一场全国性的 搜捕 开始了。
a machine that measures bodily changes to see if someone might be lying
测谎仪, 多导生理记录仪
警方在调查期间使用了 测谎仪。
a group of people standing next to each other so a witness can try to identify a criminal suspect
辨认行列, 嫌疑人队列
警察向目击者展示了一个 辨认队列。
something that cannot be understood or explained because important facts are unknown
谜, 奥秘
a case that is very clear and easy to prove because there is strong evidence
a machine that measures and records bodily functions like pulse, blood pressure, breathing, and sweating
测谎仪, 多导生理记录仪
警察在面试中使用了 测谎仪。
a person the police think may be connected to a crime but who has not been arrested
a person who may be dangerous to a country or organization, especially if trusted with secret information
安全风险, 安全威胁
公司将她视为安全风险。
the place at an airport or port where passengers' bags are checked for illegal goods as they enter a country
海关, 海关检查
她向海关官员申报了她在国外购买的纪念品。
to find an answer or solution to a question or problem
解决, 解答
a situation in which police secretly watch a place to observe someone or find evidence of a crime
监视, 盯梢
他们在嫌疑人的房子附近计划了一次监视。
to watch a building continuously, usually by police or reporters, to see who goes in or out
持续监视, 蹲守建筑物观察出入人员
侦探们决定监视嫌疑人的公寓，看看谁进谁出。
the act of monitoring a person or place, especially by the police
监视, 监控
安全摄像头的监控录像帮助解决了这个案子。
to think that someone may have committed a crime, without having proof
怀疑, 猜疑
a person who is hired to investigate crimes or personal matters, but is not a police officer
私家侦探, 私人侦探
私家侦探跟踪了嫌疑人。
an individual or group of individuals who take the law into their own hands, acting outside the legal system to enforce their version of justice or address perceived wrongs
治安维护者, 义务警员
这个小镇对一名治安维持者的行为意见分歧，他自行负责逮捕疑似小偷。
the act of taking the law into your own hands instead of relying on the police
警惕主义, 私刑
他因私刑行为被捕。
actively sought by law enforcement due to involvement in criminal activity
通缉, 在逃
当局发布了一份通缉人员名单，以寻求公众帮助抓捕他们。
a list of people or groups that authorities watch closely because they may be dangerous
监视名单, 观察名单
警方将他添加到他们的监视名单中。
someone who has personally seen of an object, event, etc. and can describe it
目击者, 证人
作为事故的目击者，她能够准确地描述发生的事情。
proof that indicates a person was somewhere other than the place where a crime took place and therefore could not have committed it
不在场证明
辩护律师提出了几位证人来支持被告的不在场证明。
an examination of a deceased person's organs to determine the cause of death
尸检, 死后检查
尸检以准确和彻底为重点进行。
a dead person's physical frame
尸体, 遗体
the place where a crime happened and where police look for evidence
犯罪现场, 案发现场
他们在犯罪现场发现了一个包。
related to the use of scientific techniques when trying to know more about a crime
法医的, 刑事的
对枪击事件的弹道进行法医分析帮助检察官重建了发生的事情。
the scientific techniques that help police solve crimes
法医学, 刑事科学
数字取证工具使他们能够从嫌疑人的智能手机中恢复已删除的短信。
a mark made by the unique pattern of lines on the tip of a person's finger, can be used to find out who has committed a crime
指纹, 指印
法医专家从犯罪现场提取了几个指纹进行分析。
a statement, document, or object that is used in a law court for establishing facts
证据, 证物
an object, document, photograph, or other item formally presented as evidence in a legal proceeding
证物, 证据
to search a person by having them remove their clothes to check for hidden items
裸体搜查, 脱衣搜查
警卫对进入监狱的所有访客进行了 裸体搜查。
a place where police examine physical evidence from crimes
犯罪实验室, 刑事鉴定实验室
犯罪实验室的科学家测试了样本。
the study of crimes, criminals, and how crime can be prevented
犯罪学, 犯罪研究
犯罪学有助于理解人们为什么犯罪。
an examination of a dead body to establish the cause of death or identify effects of disease
尸检, 验尸
