Every power of seizure which is conferred by an enactment to which this section applies on a constable who has entered premises in the exercise of a power conferred by an enactment shall be construed as including a power to require any information stored in any electronic form contained in a computer and accessible from the premises to be produced in a form in which it can be taken away and in which it is visible and legible or from which it can readily be produced in a visible and legible form.
This section applies—