Polish authorities must launch a prompt, impartial, independent and effective investigation into the recent allegations of use of chemical irritants by police against protesters on the night of 26 July, said Amnesty International today. Law enforcement authorities must refrain from using such tactics in the context of policing demonstrations, as the use of chemical irritants have an indiscriminate effect and a high potential of being used arbitrarily, which is in contravention of international human rights law and standards.
