Missouri Revised Statutes Title IX. Suffrage and Elections § 115.185. Canvassers, how selected--voter not at address, procedure followed--police protection, when

1. Immediately before a house-to-house canvass, the election authority shall prepare two verification lists for each precinct to be canvassed.

2. For each precinct to be canvassed, the election authority shall appoint two registered voters from its jurisdiction, one from each major political party, to serve as canvassers of the precinct. The two canvassers, each having one of the verification lists, shall together call at each dwelling place in the precinct which is shown on the verification lists.

3. If the canvassers find that any registered voter does not live at the address shown on the verification lists, they shall immediately notify the election authority.

4. Whenever it deems necessary, the election authority may request that police protection be furnished canvassers while they perform their official duties. Such protection shall be promptly furnished by the appropriate authorities.