An inspector may, at any reasonable time, enter any place, premises, vehicle or vessel, other than a private dwelling-place or any part of any place, premises, vehicle or vessel used as a permanent or temporary private dwelling-place, where the inspector believes on reasonable grounds that any work or undertaking resulting or likely to result in the deposit of a deleterious substance in water frequented by fish or in any place under any conditions referred to in subsection 37(1) is being, has been or is likely to be carried on, and the inspector may, for any purpose related to the enforcement of this section, conduct inspections, including examining any substance or product found therein, taking samples thereof and conducting tests and measurements.