A NORTHSIDE shopkeeper has warned that Ireland could face a dramatic increase in black market cigarettes over the coming years.Benny Gilsenan, who owns Benny’s store on Emmet Street, opposite Croke Park in Dublin 1, issued the warning on foot of a recent report that found a near 25 per cent increase in cigarette smuggling in Australia. The increase follows the introduction of plain packaging on cigarette packs by the Australian government, a move set to be copied here in Ireland.