On 24th April 1979, Blair Peach, a teacher from New Zealand, was killed while participating in an anti-racist demonstration in London. It is believed that an officer of the Special Patrol Group - the precursor to today's riot police - killed him. No-one was ever brought to justice because other SPG officers closed ranks and refused to give evidence. You can read about it here:
en.wikipedia.org/wiki/Death_of_Blair_Peach
In March 2021, Mariella Gedge-Rogers participated in the violence that followed the peaceful protest in Bristol against the UK government’s planned legislation to restrict the right to protest. She admitted hitting a police officer with a skateboard and, a year later, she was convicted of riot and sentenced to 5.5 years in prison. A report of the trial is here:
www.theguardian.com/uk-news/2022/mar/10/bristol-woman-hit-officer-skateboard-jailed-for-five-years
During the same protests, two police officers in riot gear were videoed using their shields to push a protester to the ground. Three of them then beat that person with the lower edge of their shields as they lie on the ground. You can watch it here:
youtu.be/W4fwiaplfOA
In response to a Freedom of Information request, Avon and Somerset Police stated:
“I can confirm that two complaints were received, concerning the use of shields at the Kill the Bill protests. These complaints were investigated and the relevant information and body worn videos would have been reviewed. We were unable to identify the officers subject to the complaint.”
Police accountability: 42 years, no change.