![A police officer, blood streaming from a head wound, being helped away by colleagues in Brixton, South London, when 23 police officers were injured, three seriously, in renewed fighting with black and A police officer, blood streaming from a head wound, being helped away by colleagues in Brixton, South London, when 23 police officers were injured, three seriously, in renewed fighting with black and](https://c8.alamy.com/comp/G4J389/a-police-officer-blood-streaming-from-a-head-wound-being-helped-away-G4J389.jpg)
A police officer, blood streaming from a head wound, being helped away by colleagues in Brixton, South London, when 23 police officers were injured, three seriously, in renewed fighting with black and
![6 killed, including 2 police officers "executed in cold blood," in Australian ambush and shootout - CBS News 6 killed, including 2 police officers "executed in cold blood," in Australian ambush and shootout - CBS News](https://assets2.cbsnewsstatic.com/hub/i/r/2022/12/13/f679e07e-9c59-4527-a800-157618baa9ce/thumbnail/640x400/b5ece9d3866933dcf3ce131ea731efea/2022-12-13t023856z-1325666047-rc2l4y98sdt8-rtrmadp-3-australia-crime.jpg)
6 killed, including 2 police officers "executed in cold blood," in Australian ambush and shootout - CBS News
![Dallas shooter Micah Johnson wrote cryptic message in his own blood on wall before he died | The Independent | The Independent Dallas shooter Micah Johnson wrote cryptic message in his own blood on wall before he died | The Independent | The Independent](https://static.independent.co.uk/s3fs-public/thumbnails/image/2016/07/10/11/dallas-police-2.jpg)
Dallas shooter Micah Johnson wrote cryptic message in his own blood on wall before he died | The Independent | The Independent
![Police Officers Had 'What Appeared to Be Blood' Thrown on Them During Philadelphia Protests, Commissioner Says Police Officers Had 'What Appeared to Be Blood' Thrown on Them During Philadelphia Protests, Commissioner Says](https://d.newsweek.com/en/full/1661328/philadelphia-police.jpg)
Police Officers Had 'What Appeared to Be Blood' Thrown on Them During Philadelphia Protests, Commissioner Says
Utah nurse reaches $500,000 settlement in dispute over her arrest for blocking cop from drawing blood from patient
![Dallas police chief: Shooter seemed delusional, scrawled cryptic messages in blood - The Washington Post Dallas police chief: Shooter seemed delusional, scrawled cryptic messages in blood - The Washington Post](https://www.washingtonpost.com/rf/image_1484w/2010-2019/WashingtonPost/2016/07/09/Others/Images/2016-07-09/Dallas_Police_Headquarters_Shooting__10901468079230.jpg?t=20170517)
Dallas police chief: Shooter seemed delusional, scrawled cryptic messages in blood - The Washington Post
![Bleeding police officer gets back up to carry on working at Black Lives Matter protest - Mirror Online Bleeding police officer gets back up to carry on working at Black Lives Matter protest - Mirror Online](https://i2-prod.mirror.co.uk/incoming/article22154558.ece/ALTERNATES/s615b/0_Protest-against-the-death-of-George-Floyd-in-London.jpg)