A 62-year-old woman who served as a citizen judge in a murder case sued the government Tuesday for ¥2 million, arguing her involvement in the trial caused her to suffer acute stress disorder.

The resident of Koriyama, Fukushima Prefecture, was one of the six lay judges who in March, together with three professional judges of the Koriyama branch of the Fukushima District Court, sentenced a man to death for killing a married couple.

In the suit filed with the Sendai District Court, the woman asserts that the lay judge system runs counter to the constitutional ban against the state imposing involuntary servitude on people.