The National Academies of Science released a comprehensive report in 2003 that examined the state of the science in lie detection. After reviewing nearly a century of scientific data and reports and visiting polygraph units run by government agencies, the NAS committee found that polygraphs were prone to both false positives and false negatives.
According to the National Registry of Exonerations, at least 139 people were exonerated in 2017. These people had been convicted of criminal offenses and were then proven to be innocent of those offenses. Shockingly, 84 of the 139 wrongful convictions were the result of official misconduct. In 66 cases, no actual crime had been committed. Overall, these people lost 1,478 years of freedom.
The Alcotest 9510, a breath testing machine used by numerous police agencies, has been challenged in court in several states. Now, a report from two software engineering consultants who reviewed its source code has been distributed. That report is no longer available for intellectual property reasons, but the consultants expressed serious concerns about the reliability of the test results.
The U.S. Supreme Court has agreed to hear an appeal of a 10th Circuit drug case involving wiretap evidence. A federal judge in the District of Kansas issued a wiretap order against two suspects, but the modern wiretap process allowed law enforcement to listen even when the phones were outside that district. Should a Kansas District wiretap order be effective wherever its targets travel? Should evidence collected outside of the Kansas District be allowed against the defendants?