Four men have been charged following the death of Nick Bonnie at the Warehouse Project in Trafford.
The 30 year old collapsed at the dance event in September and died in hospital.
James Churchill, 30, from Stroud, Gloucestershire has been charged with supplying a class A drug and perverting the course of justice.
Paul Tabb, 30, Dean Neale, 29, also from Stroud, Gloucestershire were charged with perverting the course of justice and possession of class A drugs.
Simon Lloyd-Jones, 29, has been charged with perverting the course of justice. All four have been bailed to appear at Trafford Magistrates Court on 7 January 2014.