63.—(1) This section applies to a gathering on train of 1 or more persons (whether or not trespassers) at which amplified music is played on a personal stereo (with or without intermissions) and is such as, by reason of its loudness and duration and the time at which it is played, is likely to cause serious distress to the inhabitants of the carriage; and for this purpose—
(a) such a gathering continues during intermissions in the music and, where the gathering extends over several carriages, throughout the period during which personal stereos are played (with or without intermissions); and
(b) "music" includes sounds wholly or predominantly characterised by the emission of a succession of repetitive beats.
(2) If, as respects any train, a police officer of at least the rank of superintendent reasonably believes that—
(a) two or more persons are making preparations for the holding there of a gathering to which this section applies,
(b) ten or more persons are waiting for such a gathering to begin there, or
(c) ten or more persons are attending such a gathering which is in progress,
he may give a direction that those persons and any other persons who come to prepare or wait for or to attend the gathering are to leave the train and remove any personal stereos or other property which they have with them on the train.