Professional Conduct

One of the questions in the CFA ethics section refers to the professional conduct statement: “In the last two years, have you been the subject of, a defendant in, or respondent to any investigation, civil litigation, arbitration, or other action or proceeding in which your professional conduct, in either a direct or supervisory capacity, was at issue?”

What consistutes an investigation? Are we talking about anything compliance related or just something as serious as a full fledged finra/sec investigation? In the question it’s the latter, but would like to know in case the former gets asked.