The blue gas had burst from a valve in a compressor unit hitting David Chandler, an inquest hears.
Footage of a police raid at Ms Roberts' and Mr Rebelo's Harrow flat showed capsules being picked up.
The council has agreed to commission its own independent inquiry and it has set aside £350,000.
Aethelflaed, a warrior ruler almost lost to history, is being celebrated on the 1,100th anniversary of her death
Number-crunching points to a serious gender split at the heart of Midlands politics
Manchester United keeper Dean Henderson joins Sheffield United on a season's loan following his loan at Shrewsbury.
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