In any case in which a highway patrolman has been a member of the state retirement annuity system under Sections 25-11-101 through 25-11-139 and has made contributions thereto, all employee's contributions, plus interest credited thereto, inuring to the credit of any such highway patrolman shall be transferred by the public employees' retirement system to the credit of the individual highway patrolman in the disability and relief fund established by this chapter, and shall be considered an asset to the credit of the highway patrolman in this retirement system.