It's the third day of evidence in the full inquest into the death of musician Smiley Culture, real name David Emmanuel. Mr Emmanuel died from a stab wound to the heart as his home was raided by police.
The police officer who was present when he died, referred to as Witness 2 for legal reasons, is expected to give evidence today.
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The 34-year-old from Coulsdon in Surrey died during the private party in Headley in the early hours of Monday, Surrey Police said.
The Home Office made the arrests at various restaurants across London on July 4.
Mayor of Newham Sir Robin Wales criticised the International Olympic Committee on the fourth anniversary of the opening ceremony.