(questions in black should be addressed by both MI5 and CTP, questions in red should be addressed by MI5 and questions in blue should be addressed by CTP)
Oliban
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Is it CTP’s position that it shared the Oliban material with MI5 before the Arena Attack?
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Is it MI5’s position that the Oliban material was not shared with it before the Arena Attack?
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If there is a difference of views, have steps been taken to establish whether CTP or MI5 is correct and, if so, with what outcome?
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If MI5 did not receive the Oliban material before the Arena Attack, when did they receive it?
“De Facto” Subject of Interest
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Is it the position of MI5 that no person should be treated as a “De Facto” Tier 2 Subject of Interest but instead should be either Open or Closed and that this should also have been the position in 2015 to 2016?
3458
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Do MI5 and CTP consider that the attribution of the 3458 number to Salman Abedi, if made in 2014, would have made a material difference to the assessment of the risk Salman Abedi presented?
Chilling Effect
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What is MI5’s position on the weight the Chairman should give to paragraph (vii) of Expert Witness Z’s summary of conclusions?