“Unreliable” Lung Float Test Still Being Used to Convict Women of Murder — ProPublica
The “lung float” test claims to help determine if a baby was born alive or dead, but many medical examiners say it’s too unreliable. Yet the
In investigations across the country, the lung float test has emerged as a barometer of sorts to help determine if a mother suffered the devastating loss of a stillbirth or if she murdered her baby who was born alive. The test has been used in at least 11 cases where women were charged criminally since 2013 and has helped put nine of them behind bars, a ProPublica review of court records and news reports found. Some of those women remain in prison. Some had their charges dropped and were released.
But the test is so deeply flawed that many medical examiners say it cannot be trusted. They put it in the same company as the discredited analysis of bite marks and bloodstain patterns, 911 calls and hair comparisons, all of which lack solid scientific foundations and have contributed to wrongful convictions.
It is pseudoscience masquerading as sound forensics, they say. Some even liken the test to witch trials, where courts decided if a woman was a witch based on whether she floated or sank.
“Basing something so enormous on a test that should not be used, that has been completely discredited, is absolutely wrong,” said Dr. Ranit Mishori, the senior medical adviser for the nonprofit Physicians for Human Rights, which has been studying the test, and a professor of family medicine at Georgetown University School of Medicine. “You can send a person who is innocent to prison for many years.”














