It shall be an unfair labor practice for a public employer:
(1) To interfere with, restrain, or coerce public employees in the exercise of their rights guaranteed by this chapter;(2) To control, dominate, or interfere with a bargaining representative;(3) To discriminate against a public employee who has filed an unfair labor practice charge;(4) To refuse to engage in collective bargaining with the certified exclusive bargaining representative.Amended by 2011 c 222,§ 2, eff. 7/22/2011.