law: 159. Power to require names of a washerman's customers.
  Where it is certified to the Chief Executive Officer by the Health Officer that it is desirable, with a view to prevent the spread of any infectious or contagious disease in the cantonment, that the Health Officer should be furnished with a list of the customers of any washerman, the Chief Executive Officer may, by notice in writing, require the washerman, within a time to be specified in the notice, to furnish the Health Officer with a full and complete list of the names and addresses of all owners within the cantonment of clothes and other articles which the washerman washes or has washed during the six weeks immediately preceding the date of the notice.
  Explanation.
  For the purposes of this section, the expression "washerman" shall mean an individual, body corporate, association of persons engaged in washing clothes in a cantonment.