The invasive northern snakehead, which has recently been appearing in Missouri and other states, must be eradicated, officials say.

© Ryan Hagerty/USFWS

Proponents say the devices have helped address inequities in the criminal justice system. But many defendants have experienced unintended consequences.

© Julia Rendleman for The New York Times

The judgment was issued in a case brought by the Missouri attorney general. The Chinese government did not respond to the claims in court.