(True and False)
1. The fraud triangle plus inquiry paradigm is an effective way to understand the various types of investigative methods.

2. One advantage of using a vulnerability chart is that it forces investigators to consider all aspects of a fraud.

3. Electronic surveillance is often of limited value in the investigation of employee fraud because of concerns regarding employees' privacy rights.

4. Surveillance is a theft investigation technique that relies on the examination of documents.

5. Mobile observation is usually much more risky than stationary surveillance.

6. During invigilation, no controls are imposed on any activities.

7. Surveillance logs should always be drafted before an investigation begins.

8. Not only are undercover operations both legal and valid, but they are also inexpensive.