The provisions of this Article are intended to supersede and extend the coverage of the common-law crimes of riot and inciting to riot. To the extent that such common-law offenses may embrace situations not covered under the provisions of this Article, however, criminal prosecutions may be brought for such crimes under the common law. All other provisions of the Article are intended to be supplementary and additional to the common law and other statutes of this State and, except as specifically indicated, shall not be construed to abrogate, abolish, or supplant other provisions of law. In particular, this Article shall not be deemed to abrogate, abolish, or supplant such common-law offenses as unlawful assembly, rout, conspiracy to commit riot or other criminal offenses, false imprisonment, and going about armed to the terror of the populace and other comparable public-nuisance offenses. (1969, c. 869, s. 1.)