Question: Internal Control Questionnaire for Equity Investments. Cassandra Corporation, a manufacturing company, periodically invests large sums in marketable equity securities. The investment committee of the board of directors established the investment policy. The treasurer is responsible for carrying out the investment committee's directives. All securities are stored in a bank safe deposit vault. Your internal control questionnaire with respect to Cassandra's investments in equity securities contains the following three questions:
1. Is investment policy established by the investment committee of the board of directors?
2. Is the treasurer solely responsible for carrying out the investment committee's directive?
3. Are all securities stored in a bank safe deposit vault?
Required: In addition to these three questions, what questions should your internal control questionnaire include with respect to the company's investment in marketable equity securities?