oting ▁and ▁Hun ting , ▁review ed ▁the ▁literature ▁on ▁the ▁N FA ▁and ▁hom ic ide ▁and ▁reported ▁that ▁of ▁the ▁five ▁studies ▁she ▁found ▁on ▁the ▁topic , ▁" No ▁study ▁found ▁statistical ▁evidence ▁of ▁any ▁significant ▁impact ▁of ▁the ▁legisl ative ▁changes ▁on ▁fire arm ▁hom ic ide ▁rates ." ▁ ▁Simon ▁Chap man ▁and ▁colle agues ▁reported ▁in ▁ 2 0 1 6 ▁that ▁there ▁were ▁no ▁mass ▁shoot ings ▁in ▁Australia ▁between ▁when ▁the ▁N FA ▁became ▁law ▁and ▁May ▁ 2 0 1 6 . ▁The ▁same ▁study ▁also ▁found ▁that ▁" there ▁was ▁a ▁more ▁rapid ▁decl ine ▁in ▁fire arm ▁death s ▁between ▁ 1 9 9 7 ▁and ▁ 2 0 1 3 ▁compared ▁with ▁before ▁ 1 9 9 7 ▁but ▁also ▁a ▁decl ine ▁in ▁total ▁non fire arm ▁suic ide ▁and ▁hom ic ide ▁death s ▁of ▁a ▁greater ▁magnitude ." ▁For ▁this ▁reason , ▁the ▁authors ▁concluded ▁that ▁it ▁was ▁impossible ▁to ▁say ▁definit ively ▁whether ▁the ▁reduction ▁in ▁fire arm - related ▁death s ▁can ▁be ▁attributed ▁to ▁the ▁N FA . ▁ ▁A ▁ 2 0 1 7 ▁study ▁commission ed ▁by ▁Gun ▁Control ▁Australia ▁found ▁that ▁Australian ▁states ▁had ▁significantly ▁weak ened ▁gun ▁laws ▁since ▁the ▁N FA ▁was ▁first ▁introduced , ▁with ▁no ▁juris diction ▁fully ▁comp li ant ▁with ▁the ▁N FA . ▁For ▁example , ▁many ▁states ▁now ▁allow ▁children ▁to ▁use ▁guns ▁and ▁the ▁mand atory ▁ 2 8 - day ▁cool ing