What is a primary advantage of conducting covert operations in HSI work?

Conducting covert operations in HSI work provides agents with the critical ability to gather evidence without alerting suspects, which is essential for the successful prosecution of criminal activities. This approach allows agents to observe and document illegal actions or behaviors in real time, leading to more credible and substantial evidence. The element of surprise is crucial; by not revealing their presence, agents can capture authentic interactions and activities that might otherwise be concealed or altered if suspects suspected they were under surveillance. Covert operations can be especially beneficial in cases involving organized crime, drug trafficking, or human smuggling, where suspects may take actions to evade detection if aware they are being watched. This strategic advantage not only supports better investigative outcomes but also enhances the likelihood of securing successful prosecutions.