And be it enacted, That it shall be lawful for the Lords of the said Committee, if and when they shall think fit, to authorize any proper Person or Persons to inspect any Railway; and it shall be lawful for every Person so authorized, at all reasonable Times, upon producing his Authority, if required, to enter upon and examine the said Railway, and the Stations, Works, and Buildings, and the Engines and Carriages belonging thereto: Provided always, that no Person shall be eligible to the Appointment as Inspector as aforesaid who shall within One Year of his Appointment have been a Director or have held any Office of Trust or Profit under any Railway Company.