A certificate under section 86J(7) of the Act must contain the following particulars—
(a) a statement by the approved expert that the analyst is an approved expert within the meaning of section 86J(1) of the Act;
(b) a statement as to the usual effect of a specified substance or substances on behaviour when consumed or used (including its effect on a person's ability to carry out rail safety work properly);
(c) the name and signature of the approved expert.