However, it's important to consider:
* Legal regulations: Drug-sniffing dogs are used by law enforcement agencies to detect illegal substances, but they are not typically used by private companies for routine security checks.
* Company policy: FedEx likely has strict policies regarding the handling of illegal substances and may employ other security measures instead of drug-sniffing dogs.
* Privacy concerns: Using drug-sniffing dogs could raise privacy concerns for FedEx employees and customers.
Overall, while FedEx may use other security measures, it's unlikely they would use drug-sniffing dogs in a way that would violate privacy or legal regulations.