Table 1.

Keywords used for search

2-chloracetophenone	Less lethal weapons
blistering agent	Mace
blistering gas	noxious gas
capsaicin	O-chloronitrile
capsicum canister	OC gas
capsicum spray	OC spray
chemical agent	oleoresin capsicum
chemical weapons	PAVA
CN gas	pepper spray
CR gas	Phenacyl chloride
crowd control weapon	poison gas
CS gas	riot gas
gas rounds	riot spray
lacrimating agent	riot toxin
lacrimation agent	stink spray
lacrimation gas	tear gas
lacrimator gas	tear gas canister
less lethal	toxic gas