The board of trustees of the township or the joint police district board may, upon nomination by the chief of police, send one or more of the officers, patrol officers, or other employees of the township police district or the joint police district to a school of instruction designed to provide additional training or skills related to the employees work assignment in the district. The trustees may make advance tuition payments for any employee so nominated and may defray all or a portion of the employee’s expenses while receiving this instruction.