Inspection for ascertaining existence of nuisance

68.(1) The Corporation shall cause to be made from time to time inspection with a view to ascertain what nuisance exist calling for removal under the powers of this Act, and shall enforce so far as possible the provisions of this Act in order to remove the same, and otherwise put in force the powers vested in the Corporation relating to public health, so as to secure the proper sanitary condition of all premises within the Corporation. (2) If the Corporation or a Health Officer or a Sanitary Inspector has reasonable grounds for believing that a nuisance exists in any premises, the Corporation may order of such officer may make an infection of such premises at any hour, when the operations suspected to cause nuisance are believed to be in progress or are usually carried on or when the special conditions suspected to cause the nuisance are believed to exist, and may cause such work to be done as may be necessary for an effectual examination of the said premises, including the opening of the ground or surface, where necessary, and the testing of the drains. (3) Where the ground or surface has been opened and no nuisance is found to exist, the Corporation shall restore the premises at their own cost.