The provisions of this act shall establish as state law minimum standards and requirements for the control of dogs that may threaten the public with injury and to provide for certain state crimes for violations of such minimum standards and requirements. Provided however, this act shall not supersede or invalidate existing ordinances of local governments or prohibit local governments from adopting and enforcing more restrictive definitions of a dangerous or vicious dog, as long as the local government’s definition of a dangerous or vicious dog allows for acts of justified provocation as described in section 25-2810(5), Idaho Code.