A Detention Custody Officer (DCO) interview process typically involves a combination of initial screening questions about your background, in-depth inquiries about your ability to handle stressful situations, demonstrate strong decision-making skills, and showcase your understanding of security protocols, all while emphasizing your commitment to upholding the rights of detainees within a secure environment; this may include behavioral-based questions about past experiences where you had to manage difficult individuals or maintain order in a challenging situation, alongside a physical fitness assessment and potential background checks.