'Memorial stone to First World War's fallen police officers unveiled', Newham Recorder 5/8/2014 https://www.newhamrecorder.co.uk/news/pictures-memorial-stone-to-first-world-war-s-fallen-police-officers-unveiled-1-3713771

Barking and Dagenham Post 4/8/2014: 'Police rally to remember colleagues from across East London who died in war': https://www.barkinganddagenhampost.co.uk/news/heritage/first-world-war-police-rally-to-remember-officers-from-across-east-london-who-died-in-war-1-3711582

"Operation Valour" notice, displayed on the day the Memorial was unveiled (see photo).

Barking and Dagenham Post 29/7/2014 (re the blessing of the caskets of earth from Somme and Passchendaele) https://www.barkinganddagenhampost.co.uk/news/first-world-war-fallen-police-officers-remembered-in-barking-abbey-service-1-3704527

The K Division memorial includes P.C. Edward Greenoff, who died on 29/1/1917 from wounds sustained in an explosion at a munitions factory. He is also commemorated on the Watts' Memorial - see our reference WMR 39014, https://www.iwm.org.uk/memorials/item/memorial/39014 (Our record of the Silvertown Brunner Mond Memorial, re the incident in which PC Greenoff died, can be viewed at https://www.iwm.org.uk/memorials/item/memorial/12390 )

The full story of the Silvertown explosion (in which PC Greenoff died), and an image of the memorial can be viewed at http://www.colin-grainger.co.uk/poignant-anniversary-of-the-shocking-silvertown-explosion-an-accident-waiting-to-happen/

The War Memorials Trust's record of this memorial is WMO 256819, see https://www.warmemorialsonline.org.uk/memorial/256819/