 This principle of statutory superiority was extended in Laker Airway Ltd v Department of Trade , concerning the revocation of a commercial airline operator 's licence ( December 1976 ) , where it was confirmed that prerogative powers could not be used to contradict a statutory provision , and that in situations to which the power and the statute both applied , the power could only be used to further the aim of the statute . Another extension came with R v Secretary of State for the Home Department , ex parte Fire Brigades Union , where the Court of Appeal held that even if a statute had not yet come into force , the prerogative could not be used to alter this statute to " conflict with Parliament 's wishes " . 
 This principle of statutory superiority was extended in Laker Airway Ltd v Department of Trade , concerning the revocation of a commercial airline operator <a href='null_genetive' title='1'><mark>'s</mark></a>licence ( December 1976 ) , where it was confirmed that prerogative powers could not be used to contradict a statutory provision , and that in situations to which the power and the statute both applied , the power could only be used to further the aim of the statute . Another extension came with R v Secretary of State for the Home Department , ex parte Fire Brigades Union , where the Court of Appeal held that even if a statute <a href='been_done' title='2'><mark>had</mark></a> not yet come into <a href='negative_concord' title='3'><mark>force</mark></a> , the prerogative could not be used to alter this statute to " conflict with Parliament <a href='null_genetive' title='4'><mark>'s</mark></a>wishes " . 
Dis principle of statutory superiority was extended in Laker Airway Ltd v Department of Trade , concerning the revocation of a commercial airline operator  licence ( December 1976 ) , where it was confirmed that prerogative powers could not b used to contradict a statutory provision , and dat in situations to which da power and tdastatute both applied , the power could only be used to further the aim of the statute . Another extension came wid R v Secretary of State for the Home Department , ex parte Fire Brigades Union , where thdaourt of Appeal held that even if a statute done not yet come into no force , the prerogative could not bbused to alter this statute to " conflict with Parliament  wishes " .