Investigators this morning re-created, as closely as possible, the circumstances which caused the prime minister and several supporters to suffer temporary blindness on April 6.
Dr Muscat and some 40 other people were hospitalised after attending a Labour Party event held under a tent in Zurrieq.
Their injuries were compatible with lighting burns caused by exposure to UV radiation, similar to a welder’s burns or snow blindness.
The tent and lighting used in the event were this morning set up in a car park at the University to replicate the event, as far as possible.
Readings were taken by the University.