The Danger of Fraudulent Forensics

PMT 2014-073b
Boston Scandal Exposes Backlog Chemist charged with fraud shows system under pressure
by Eugenie Samuel Reich
Nature: International Weekly Journal of Science (

The numbers are shocking: 1,100 people are in jail on the basis of evidence that may have been tampered with, and 34,000 criminal cases could be affected. The fallout stems from the work of just one forensic chemist, who is alleged to have faked test results on suspected drug samples.

The revelations and the subsequent arrest on 28 September 2012 of Annie Dookhan, who worked at a state-run laboratory in Boston, Massachusetts, have rattled the US forensics community and raised questions about oversight across the profession. Nature has learned that the facility had applied for federal funding to help to clear a backlog of some 8,000 cases — a full year’s work. The situation parallels that of overburdened forensic labs across the United States.

“If you think this couldn’t happen in your lab, you’re naive,” says Robin Cotton, director of the forensic-sciences programme at Boston University and a former forensic-lab director. “Lab directors all over the country are paying attention.” Cotton and others say that the affair highlights a resourcing problem that is putting pressure on US forensic-lab workers and their supervisors, who need to bring cases to court fast, but without compromising the integrity of test results.

Dookhan has pleaded not guilty to charges of obstructing justice by falsifying data in two criminal cases, and of lying under oath about her qualifications. However, a wide-ranging confession by Dookhan documented in a police report published by The Boston Globe implies that she falsified results on numerous occasions over the past 2–3 years. In most cases, she had guessed the nature of samples she had been asked to test; but “a few times” she had recorded the results of negative drug tests as being positive. Because Dookhan wasn’t able to tell police which samples she had faked, and has said that she sometimes contaminated samples after the fact so that they would conform to her guesses, the possibility of wrongful conviction now swirls around the tens of thousands of cases on which she worked. Those who are currently serving jail terms are set to have their cases reviewed in court hearings that will begin on 15 October.

Dookhan’s role at the lab was to identify compounds found by police that were suspected to be drugs. Police interviews with her former colleagues reveal that she tested more samples in less time than any other chemist in the lab — a record of productivity that raised eyebrows and had generated complaints from co-workers. In one instance, a top official reacted to concerns by giving Dookhan a special project to try to “slow her down”.

Dookhan resigned in March while facing termination proceedings. The director of analytical chemistry has been fired, the lab bureau chief has resigned and Dookhan’s direct supervisor faces disciplinary proceedings. Massachusetts public-health commissioner John Auerbach has also resigned, taking responsibility for the loss of confidence in the state’s forensic work as a result of the scandal.

Resource problem

Forensic labs in the United States are under a great deal of pressure to keep up with increasing case loads. In Massachusetts, for example, Nature has found that the National Institute of Justice (NIJ) in Washington DC allocated the state police at least US$1.2 million from 2009 and 2011 to try to clear backlogs, in part by hiring an extra drug chemist and by buying new equipment. A spokeswoman for the NIJ has confirmed that some of the funding was routed to the lab in which Dookhan worked. The grants came with a requirement to provide oversight and report on any allegations or suspicions of wrongdoing that might affect the integrity of forensic science, but the NIJ says that nothing had been reported by state police by the end of 2011. . . .

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