To ask the Secretary of State for Justice what estimate he has made of the incidence of dirty protests at each prison establishment in each of the last five years; and if he will make a statement. (182146)

A dirty protest is not included in the list of incidents that must be reported to the national operations unit at Prison Service headquarters. Information on the number of dirty protests is not held centrally and could be obtained by contacting each prison only at a disproportionate cost.