The Deputy Chair of the Independent Police Complaints Commission Deborah Glass said:
While the jury has today acquitted PC Simon Harwood of manslaughter, it is clear that significant questions remain in connection with his actions on the day Ian Tomlinson died.
Whether or not those actions were reasonable will be tested further at a misconduct hearing in September, which I have directed will be held in public.
There are also questions in this case that the Metropolitan Police Service must answer. PC Harwood was able to retire from the Metropolitan Police while facing disciplinary proceedings for previous alleged misconduct towards a member of the public.
That he was then re-employed by the force, first in a civilian role and later as a constable, is simply staggering and raises considerable concerns about their vetting procedures.
More top news
Makram Ali, 51, died of multiple injuries at the scene of the terror attack after a van crashed into a group of people near a mosque.
A teenager has been charged over the fatal shooting of her boyfriend in what she told police was a YouTube prank gone wrong.
The hunt for a blind WWII veteran's medals has intensified after Crimestoppers offered £5,000 for information which leads to their return.