Georgia uses World War One-era camite chemical weapon on Tbilisi protesters

Key facts

• Camite was deployed by France against Germany during World War One.
• Camite is bromobenzyl cyanide, listed as 'Chemical powder UN3439' mixed with 'Chemical liquid UN1710' trichloroethylene in Georgia's Special Tasks Department inventory.
• Special Tasks Department is the official name of Georgia's riot police.
• Camite believed taken out of circulation in the 1930s due to long-lasting effects and replaced by CS gas.
• Under international law, police forces allowed to use chemicals for crowd control if proportionate with short-term effects.
• UN Special Rapporteur on Torture Alice Edwards stated effects must be temporary and called for investigation under torture or ill-treatment.