Section 10(2)(h) in The Bengal Smoke-Nuisances Act, 1905
(h)prescribe a procedure for the giving of warning to offenders before instituting a prosecution under this Act, and declare the minimum period which should be allowed to elapse in different classes of cases between the giving of [such warning and the institution of a prosecution] [Word 'and' repealed by Ben. Act 1 of 1916.];