Those measures were put into effect by the Decision of the Central Group of 27 October 1998 on the adoption of measures to fight illegal immigration (SCH/C (98) 117).
Rinneadh na bearta a chur i bhfeidhm le Cinneadh ón Lárghrúpa an 27 Deireadh Fómhair 1998 maidir le bearta a ghlacadh chun an inimirce neamhdhleathach a chomhrac (SCH/Com-ex (98) 117).