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(单词翻译:双击或拖选)
This is IN THE NEWS in VOA Special English.
The use of scientific knowledge in legal cases is called forensics, from the Latin term for a public forum2. The public may get the idea from TV that forensic1 science can solve almost any mystery. Yet the methods used in crime laboratories are now themselves being examined.
A forensic scientist at the New York State Police lab in Albany processes DNA3 samples
In the United States, a two-year study requested by Congress was released earlier this year. It found that except for nuclear DNA analysis, no forensic method has really proven itself as a way to link evidence to a person.
The National Research Council, part of the National Academies, suggested ways to strengthen forensic science in the United States. A committee found serious problems in the current system. Differences between budgets, equipment and the availability of skilled workers have created uneven4 quality from lab to lab. No one even knows how many forensics laboratories, public or private, there are.
There are no national standards for the employees. And only four states -- Texas, Oklahoma, New York and now Missouri -- require lab approval by an accrediting5 organization.
The Innocence6 Project is a group that works to help prisoners who could be proven innocent by DNA testing. Last month, its director, Peter Neufeld, spoke7 at a Senate hearing on the report. He told the story of Roy Brown, who was found guilty of murder and who also attended the hearing.
The case against him included a bite mark examined by a forensic dentist. The real killer8 was later identified through DNA. By that time, Roy Brown had served fifteen years in prison.
So far, DNA testing has cleared -- the term is exonerated9 -- more than two hundred forty people in the United States. Some had been sentenced to death, though none had been executed already.
Peter Neufeld says the issue is not just about protecting the innocent, but also about catching10 the guilty.
PETER NEUFELD: "Because in each of these cases, the real perpetrator was out there committing other heinous11 crimes."
The report earlier this year urged Congress to establish a National Institute of Forensic Science. It would lead research efforts and establish and enforce standards.
Sarah Chu from the Innocence Project says her group believes this is the most important recommendation. But the American Society of Crime Laboratory Directors says there is no need to create a new agency to handle that task. In March the society wrote a letter to Congress in reaction to the report.
The group said crime laboratories today are doing more with less. They face heavy demands with limited resources and limited ability to meet training and other professional needs. The group said Congress should support large amounts of money for all areas of forensic science, not just DNA.
In the United States, criminal suspects have a right to face their accusers at trial. In June, the Supreme12 Court ruled five to four that analysts13 who prepare crime lab reports can be called to appear. The justices said being able to cross-examine the analysts could help uncover any problems with the testing methods or results used as evidence.
And that's IN THE NEWS in VOA Special English, written by Brianna Blake. I'm Steve Ember.
1 forensic | |
adj.法庭的,雄辩的 | |
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2 forum | |
n.论坛,讨论会 | |
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3 DNA | |
(缩)deoxyribonucleic acid 脱氧核糖核酸 | |
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4 uneven | |
adj.不平坦的,不规则的,不均匀的 | |
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5 accrediting | |
v.相信( accredit的现在分词 );委托;委任;把…归结于 | |
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6 innocence | |
n.无罪;天真;无害 | |
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7 spoke | |
n.(车轮的)辐条;轮辐;破坏某人的计划;阻挠某人的行动 v.讲,谈(speak的过去式);说;演说;从某种观点来说 | |
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8 killer | |
n.杀人者,杀人犯,杀手,屠杀者 | |
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9 exonerated | |
v.使免罪,免除( exonerate的过去式和过去分词 ) | |
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10 catching | |
adj.易传染的,有魅力的,迷人的,接住 | |
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11 heinous | |
adj.可憎的,十恶不赦的 | |
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12 supreme | |
adj.极度的,最重要的;至高的,最高的 | |
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13 analysts | |
分析家,化验员( analyst的名词复数 ) | |
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