Final answer:
The question relates to the duration of a course for qualified security industry managers that serves as a substitute for ethics training. The exact number of hours is not specified in the question and could be subject to specific industry regulations.
Step-by-step explanation:
The student's question pertains to the continuing education requirements for qualified managers in the security industry. Specifically, it inquires about the duration of a course that can serve as a substitute for an ethics requirement. While the blank space in the question should be filled with the exact number of hours required, which can vary depending on certain regulations or standards, a common format for such a course might be an 8-hour or 16-hour training. These courses are designed to update managers on recent changes in laws and rules relevant to their field and ensure that their knowledge remains current.