> Typically police riot helmets have exactly that (a big number) on the back of them so they can identify each other in the chaos. That's far from universal.

> Typically police riot helmets have exactly that (a big number) on the back of them so they can identify each other in the chaos. That's far from universal. I did some googling: Helmet number: * DC Police: https://www.nbcnews.com/politics/politics-news/after-night-significant-damage-d-c-mayor-bowser-imposes-earlier-n1221126 https://www.nbcnews.com/politics/politics-news/after-night-s... * San Francisco police: https://warriorpublications.wordpress.com/2012/10/07/san-francisco-report-from-anti-columbus-march-1062012/ https://warriorpublications.wordpress.com/2012/10/07/san-fra... * Denver Police: https://www.denverpost.com/2016/07/14/poll-riot-gear-for-police-at-protests/ https://www.denverpost.com/2016/07/14/poll-riot-gear-for-pol... No number: * Boston Police/MA State Police: https://psmag.com/social-justice/policing-a-class-society https://psmag.com/social-justice/policing-a-class-society * Minnesota State Patrol: https://www.cbc.ca/news/world/minneapolis-riots-ferguson-1.5590678 https://www.cbc.ca/news/world/minneapolis-riots-ferguson-1.5... * Chicago Police: https://www.gettyimages.com/detail/news-photo/chicago-police-officers-in-full-riot-gear-stand-guard-news-photo/1861464 https://www.gettyimages.com/detail/news-photo/chicago-police... One issue I have is that even when there are ID numbers on the uniforms, they're too small. The only ones above that I thought were adequately large were on the San Francisco police uniforms. The number should be large enough to be read off an active/moving officer's uniform from a photograph taken some distance away (like 30-50 feet).