Question to the Home Office:

To ask the Secretary of State for the Home Department, whether her Department plans to separate the number of procedures for the (a) LD50 (lethal dose 50%) and (b) LC50 (lethal concentration 50%) tests in the annual statistics of scientific procedures on living animals.

The Home Office publishes extensive data on the use of animals in science in the annual statistics of scientific procedures on living animals.

There are no plans to disaggregate the number of procedures specifically relating to the LD50 and LC50 tests within these statistics.