378.Section 142 defines the controlled area of Parliament Square in which the activities set out in section 143(2) are prohibited. This controlled area comprises the central part of Parliament Square which includes the central garden with its areas of grass and walkways as well as the pavements immediately surrounding the central garden. See also the map attached at Annex A to the Explanatory Notes for the delineation of the controlled area (which is the entire hatched area on the map comprising both the Greater London Authority and the Westminster City Council areas of responsibility).