Which of the following is an example of surveillance-detection countermeasures?

Employing RAMs, or Random Antiterrorism Measures, serves as an effective example of surveillance-detection countermeasures. RAMs are designed to mitigate the risk of surveillance by introducing unpredictability into routines and procedures, making it more difficult for potential adversaries to gather information on targets. By implementing these measures, personnel can reduce their exposure to threats and enhance the overall security of the environment.

In contrast, the other options do not specifically embody surveillance-detection countermeasures. Negotiating with potential threats might aim to diffuse a situation but does not actively detect or counter surveillance. A direct confrontation with suspects involves engaging with an identified threat rather than preventing their ability to gather information on a target. Providing shelter to civilians, while vital for protection, does not directly contribute to countering surveillance efforts or detecting potential threats.