Lindsay Sandiford, 55, a former legal costs secretary, was caught with 4.8kg of the drug stuffed in the lining of her suitcase as she landed on the island aboard a flight from Bangkok.
Following her arrest, she agreed to take part in a “sting” operation which resulted in police swooping on four other suspects including three Britons – two men and a woman – and an Indian.
The head of Bali’s drugs squad said the two British men, who have not been named, were believed to be senior figures in a major drug-smuggling syndicate.
Mrs Sandiford is believed to have told police she only agreed to smuggle the drugs because her two sons, who are aged 22 and 24, were being threatened. Appearing at a press conference wearing a prison T-shirt, Mrs Sandiford was paraded in front of the haul of drugs.
Masked and armed officers in Kuta, a town on the holiday island, flanked her as she was brought into the room, while a customs official cut open brown tape packages to reveal a white powder.
