Section 40

is within the target area of a special authorisation;

is consorting with or is found in the company of another person who —

is committing or attempting to commit or is doing any act preparatory to the commission of an offence under section 39; or

has recently committed or attempted to commit that offence or done that act; and

is found in circumstances which raise a reasonable presumption that the person intends or is about to act, or has recently acted with the other person in paragraph (b), in any manner prejudicial to controlling public disorder or restoring or maintaining of public order in the target area of a special authorisation.