(4) (a) Each school board and the governing body of each private school shall have in effect a school safety plan. (b) A school safety plan shall be created with the active participation of appropriate parties, as specified by the school board or governing body of the private school. The appropriate parties may include the department of justice, local law enforcement officers, fire fighters, school administrators, teachers, pupil services professionals, as defined in s. 118.257 (1) (c), and mental health professionals. Before creating or updating a school safety plan, a school board or governing body of a private school shall, in consultation with a local law enforcement agency, conduct an on-site safety assessment of each school building, site, and facility that is regularly occupied by pupils. The on-site assessment shall include playgrounds, athletic facilities or fields, and any other property that is occupied by pupils on a regular basis.