Section 201 - Definition of unlawful assembly

(1) For the purposes of this Chapter, there is an unlawful assembly when three or more persons assemble with intent to commit an offence, or having assembled with an intent to carry out a common purpose, conduct themselves in a manner likely to cause persons in the neighbourhood reasonably to fear that the persons so assembled will commit a breach of the peace, or will by the assembly needlessly and without a reasonable occasion provoke other persons to commit a breach of the peace.

(2) It is immaterial that the original assembling was lawful if, having assembled, they conduct themselves with a common purpose in that manner.