Detection agencies are organizations that specialize in identifying and investigating various types of activities, often related to crime or security threats. They use a range of techniques, including surveillance, data analysis, and field investigations, to gather information and evidence. These agencies can operate at local, national, or international levels, depending on their jurisdiction and focus. Common examples of detection agencies include law enforcement agencies, intelligence agencies, and private investigation firms. Each type of agency has specific roles, such as enforcing laws, gathering intelligence on potential threats, or conducting background checks for individuals or businesses. Their work is crucial for maintaining public safety and security.