Meanwhile, violent crime is also rising across the country.
Police recorded 37,443 offences involving a knife or sharp instrument in the year ending September 2017 – 21 per cent up from 2016 and the highest since comparable records started in the 12 months to March 2011.
Gun-related crime also went up by a fifth year on year, to 6,694 recorded offences.
London’s mayor Sadiq Khan has invited Home Secretary Amber Rudd and MPs to a summit at City Hall to discuss the capital’s crime wave.
Mr Ogunsola was stabbed in Hackney, east London, on Wednesday.
Law enforcement officers in Ferguson, Mo., have used tear gas extensively in the wake of the police-shooting death of Michael Brown, an 18-year-old unarmed African-American. " The post had garnered 143,000 likes, 42,000 shares, and 35,000 comments by late August. Pepper spray and CS gas are among the most commonly used.
It was finalized in 1993 but took effect on the convention five days before it went into force.
In addition, there may be a gray area for use by the military.
After Ferguson where we saw children, disabled people, and members of the press being hit with tear gas while exercising their First Amendment rights, why are they being contained with something that we don't even use on the battlefield?A 17-year-old boy appeared before Thames magistrates yesterday, charged with the murder of Israel Ogunsola, 18, and possessing an offensive weapon.The youth will appear at the Old Bailey on April 10.• The use of any type of gas on a battlefield is problematic."Part of the thinking is that soldiers in the field don't have the ability to readily distinguish in the heat of battle if a gas being used is tear gas or something more lethal," said Richard Price, a political scientist at the University of British Columbia who has studied the issues.