Mo. Rev. Stat. § 326.274: Investigation of complaints by board.

Upon receipt of a complaint or other information suggesting violations of this chapter or the rules of the board, the board may conduct investigations to determine if probable cause exists to institute proceedings pursuant to sections 326.295 to 326.316 against any person or firm for the violation, but an investigation pursuant to this section shall not be a prerequisite to initiate proceedings where a determination of probable cause can be made without investigation.