A British judge on Tuesday said Bahrain’s Prince Nasser bin Hamad Al-Khalifa did not have legal immunity from prosecution following a review requested by a Bahraini torture survivor.

“It’s a victory for the people of Bahrain,” said Sayed Al-Wadaei, director of advocacy at the Bahrain institute for rights and democracy campaign group, after the hearing. “The day of accountability has come for Bahrain,” he said.

A lawyer for the anonymous survivor, Sue Willman, said she expected a meeting with the police’s war crimes unit “in the next few weeks” to discuss taking the investigation further. The survivor was referred to in court only as “FF”. Activists want the British police to investigate allegations that the prince was involved in torturing political prisoners. The decision has no immediate effect on the prince, who is not being prosecuted and considers Britain a home-from-home. It could, however, lead to his arrest if the case is pursued.