Australia has seen a "huge growth of illicit and illegal tobacco" since plain cigarette packaging was introduced, a retail expert told Good Morning Britain.
Jeff Rogut, from the Australasian Association of Convenience Stores said there had been a "dramatic shift" towards cheaper brands as well as customers choosing to buy illegal cigarettes, which could contain more toxins than regular ones.
More top news
Train operating companies are failing to properly inform passengers about their rights, according to Which?
The average house price in a UK city has surged by nearly a third over the last five years, a shocking report has found.
Former foreign secretary David Miliband says he is 'deeply concerned' and refuses to rule out a future run for the Labour leadership.