I'm glad you asked the question.
It's actually not going to be a redesignation by the review board. The court, in this bill, is empowered to make the high-risk designation, and the court is empowered to revoke the high-risk designation.
After someone is designated as high risk and they're supervised and managed by the review boards, they will have reviews—whether annually or every two or three years—and the review board will look at their progress and how they're doing. If the review board then becomes of the opinion that the person no longer poses a substantial likelihood of committing further violence, the board can refer the matter back to the court with a recommendation to the court that perhaps the designation should be revoked.