I am grateful to my hon. Friend for raising a very serious incident. Such attacks are truly dreadful and have life-changing consequences, and anyone committing them must feel the full force of the law. That is why the Offensive Weapons Bill, which is currently being considered in the Lords, will change the law to stop the sale of acid to under-18s and to make it an offence to possess a corrosive substance in a public place. It is for the independent courts to determine sentences handed down in individual cases, but it is already the case that the use of a weapon, including acid, in any offence is treated as an aggravating factor meriting an increased sentence.