This is in response to recent acid attacks against members of the public, and a very small number of such attacks against SIA license holders. An acid attack involves a corrosive substance being thrown or sprayed on a person or people as part of a violent attack or robbery. Although “acid attack” is the phrase most people use to refer to such incidents, they can involve acidic, alkaline or caustic chemicals. Household cleaners, drain un-blockers and industrial chemicals might all be used by perpetrators.