[1] : The Collaborative International Dictionary of English v.0.48

gag law \gag law\ parliamentary law
   a law or ruling prohibiting proper or free debate, as in
   closure. colloq. or cant
   webster 1913 suppl.

[2] : WordNet (r) 2.0

gag law
     n 1: a rule for limiting or ending debate in a deliberative body
          syn: closure, cloture, gag rule
     2: any law that limits freedom of the press
see also:
closure cloture gag rule 

Canon Law >> C Words
Canon Law, definition of term: Canon Law
canon+law_pag1.html

Case Law >> C Words
Case Law, definition of term: Case Law
case+law_pag1.html

Civil Law >> C Words
Civil Law, definition of term: Civil Law
civil+law_pag1.html

Boyles Law >> B Words
Boyles Law, definition of term: Boyles Law
boyles+law_pag1.html

Bodes Law >> B Words
Bodes Law, definition of term: Bodes Law
bodes+law_pag1.html

Antitrust Law >> A Words
Antitrust Law, definition of term: Antitrust Law
antitrust+law_pag1.html

Blue Law >> B Words
Blue Law, definition of term: Blue Law
blue+law_pag1.html

Admiralty Law >> A Words
Admiralty Law, definition of term: Admiralty Law
admiralty+law_pag1.html