Final answer:
The passage underscores the legal necessity for loss prevention workers to hold a license to operate, enforcing security standards and business protections.
Step-by-step explanation:
The passage outlines the requirements for loss prevention workers to operate legally. It specifies that no person may provide loss prevention services without a license. This applies to individuals working in plain clothes to prevent or detect loss or damage to commercial, industrial, or retail property. It also prohibits advertising or offering such services without the appropriate licensing. These conditions help ensure a minimum level of security and uphold laws that protect legitimate business interests and the safety of individuals and their properties.