Deloitte's employment policies may include drug testing as part of their hiring process, but this can vary by location and specific job roles. Generally, many large firms, including Deloitte, implement drug testing to ensure a safe and productive work environment. In summary, the question arises whether Deloitte mandates drug testing for potential employees. It is important to note that the requirement for drug testing can differ based on the job position and geographical location. Typically, major companies like Deloitte adopt drug testing protocols to promote workplace safety and efficiency.