Thai authorities have banned beach parties on some holiday islands after a Norfolk student and her friend were murdered last month.
23-year-old Hannah Witheridge, from Hemsby near Great Yarmouth, was killed alongside David Miller from Jersey, on the island of Koh Tao.
Two Burmese migrant workers have been charged with the murders. Last week lawyers for the suspects confirmed they had withdrawn their confessions amid allegations they had been tortured by police.
British police are to head to Thailand to help investigate the murder of Norfolk student Hannah Witheridge.
The families of the Burmese workers accused of the murder of two British tourists in Thailand last month have said they are innocent.
Thailand's Prime Minister is insisting the men accused of killing Norfolk student Hannah Witheridge will be given a fair trial.