reg 7 Overnight subsistence allowances to professional or expert witnesses and to interpreters
(1) Any of the persons mentioned in paragraph (2) below whose attendance causes him to be necessarily absent from his place of residence overnight shall be entitled to receive an overnight subsistence allowance of the relevant amount in respect of each such night of absence. (2) The persons referred to in paragraph (1) above are — (a) a witness who receives an allowance under regulation 6 above; (b) an expert witness who attends to give expert evidence; and (c) an interpreter.