The Southampton student died from his injuries, while handcuffed on the ground by Hampshire police officers
The police watchdog says the incident does not meet the threshold for investigation.
An inquest into the death of James Brandon, 42, from Ware, is opened and adjourned.
A woman from Warwickshire says police in Devon failed to investigate her rape report when she was 16.
The IOPC says the investigation has been passed back to Hertfordshire Police.
Devon and Cornwall Police refers itself to the IOPC after the incident in Wadebridge.
While Aqib Ahmed has been sacked by Greater Manchester Police he will not face criminal charges.
Police had "significant history" with Ryan Kelly, who died with his ex partner Jo Shaw in the blast.
Police acted in a "proportionate" way when they shot a man dead, an investigation finds.
