After an employer has paid an employee those benefits which have accrued during the period of 52 weeks after the date of injury, the trustees may compromise the liability of the fund by entering into a redemption of liability directly with the employee if in the judgment of the trustees it is in the employee's best interest to do so. Redemption of liability terminates all liability, including vocational rehabilitation, of the fund. A redemption of liability by the employer made with the employee before actual payment by the employer of those benefits which have accrued during the period of 52 weeks after the date of injury eliminates all liability, including vocational rehabilitation, of the fund.