...or secretary. In making investigations as herein authorized said commission or any member thereof is hereby empowered to .issue compulsory process for the attendance of witnesses and the production of papers, to administer oaths and to examine persons under oath. This section was derived from L....

...more of its members of the work of any probation officer and for this purpose, the member, or members, designated to make such investigation are hereby empowered...for the attendance of witnesses and the production of papers, to administer oaths, and to examine persons under oath, and to exercise the same powers...

...investigation of the facts in the case by one of its members ; the commissioner conducting such inquiry is hereby empowered to issue compulsory process for the attendance of witnesses and the production of papers, to administer oaths and to examine persons under oath, and to exercise the same powers as...

...or more of its members of the affairs and management of any institution or society or association, subject to its supervision, or of the conduct of its officers and employes. The Committee thus designated is empowered to issue compulsory process for the attendance of witnesses...

...one or more of its members, of the affairs and management of any institution, society or association, subject to its supervision, or of the conduct of its officers and employes, and the Commissioner or Commissioners, so designated to make such investigation, are hereby empowered...