Japan's top court ruled on Wednesday that a defunct eugenics law under which thousands of people were forcibly sterilized between 1948 and 1996 was unconstitutional.
The Supreme Court also declared that a 20-year statute of limitations could not be applied, paving the way for compensation claims from victims after years of legal battles.
"For the state to evade responsibility for damages payments would be extremely unfair and unjust, and absolutely intolerable," the court in Tokyo said.