Section 2(a) defines the meaning of the expression "acting in any manner prejudicial to the maintenance of public order" and reads as follows: "acting in any manner prejudicial to the maintenance of public order" means (i) in the case of a slumlord, when he is engaged, or is making preparations for engaging, in any of his activities as a slumlord, which affect adversely, or are likely to affect adversely, the maintenance of public order; (ii) in the case of a bootlegger, when he is engaged, or is making preparations for engaging, in any of his activities as a bootlegger, which affect adversely, or are likely to affect adversely, the maintenance of public order; (iii) in the case of drug offender, when he is engaged or is making preparations for engaging, in any of his activities as drug offender, which affect adversely, or are likely to affect adversely, the maintenance of public order; Explanation: For the purpose of this clause (a), public order shall be deemed to have been affected adversely, or shall be deemed 246 likely to be affected adversely, inter alia, if any of the activities of any of the persons referred to in this clause, directly or indirectly, is causing or calculated to cause any harm, danger or alarm of a feeling of insecurity, among the general public or any section thereof or a grave or widespread danger to life or public health;" 20.