What is a standard procedure for maintaining facility security?

Screening all prospective employees is a standard procedure for maintaining facility security because it ensures that individuals who will have access to sensitive areas, animals, and research are thoroughly vetted. This process typically involves background checks, reference checks, and verification of qualifications to identify any potential risks a new hire may pose to the safety and security of the facility. By ensuring that only qualified and trustworthy individuals are employed, the facility minimizes the chances of theft, abuse, or other security breaches that could compromise both the animals' welfare and the integrity of research conducted there.

The other options, while beneficial in their own rights, do not directly relate to the comprehensive security measures provided by employee screening. Regular audits of animal logs help with tracking and confirming proper care but are not preventative of security breaches. Enhancing lighting improves visibility and may deter unauthorized access, yet it does not replace the need for careful employee vetting. Installing surveillance cameras serves as a monitoring tool that can help in identifying security breaches after they occur but does not prevent unsuitable individuals from being placed in sensitive positions.