Sec. 5. It is the policy of this state that individuals who are blind, individuals with a visual disability, and other individuals with a physical or mental disability shall be employed in:
(1) the state service;
(2) the service of the political subdivisions of the state;
(3) the public schools; and
(4) all other employment supported in whole or in part by public funds;
on the same terms and conditions as the able-bodied, unless it is shown that the particular disability prevents the performance of the work involved.