
From tracking criminals to sniffing out(嗅出,发现) drugs, dogs have long helped police crack cases(破案). Now experts are hoping a database of canine(犬的,犬类的) DNA could offer vital(至关重要的) leads.
从追踪罪犯到嗅探毒品,狗长期以来一直在帮助警方破案。如今,专家们希望一个犬类DNA数据库能提供关键线索。
While hair, saliva and other canine material may be found at crime scenes, or on individuals connected to incidents, scientists say they are often not fully investigated.(虽然犯罪现场或相关人员身上可能发现犬类物质,但科学家表示这些物质往往未获充分调查。)
虽然犯罪现场或与事件相关的人员身上可能发现毛发、唾液等犬类物质,但科学家表示,这些物质往往没有得到充分调查。
Yet such traces could provide valuable clues, from the identity of a canine perpetrator to evidence a dog’s owner was present at a crime scene.(然而,这类痕迹可能提供有价值的线索,从确定犬类作案者的身份,到证明狗主人曾出现在犯罪现场。)
然而,这类痕迹可能提供有价值的线索,从确定犬类作案者的身份,到证明狗主人曾出现在犯罪现场。