Surveillance Detection Unit is a group of adults who are like detectives, but instead of looking for clues to solve a crime, they look out for people who might be trying to do something harmful or dangerous. They keep an eye on places like airports, train stations, and big events to make sure everything is safe.
They use their eyes and ears to pay attention to everything around them. They might notice someone acting suspiciously or carrying something they shouldn't have. They also watch for patterns or unusual behavior, like if someone is always at the same spot at the same time every day.
Their job is to then report this information to the people responsible for making sure the place is safe. They might work with security guards, police officers, or other groups to make sure everyone is safe and secure.
Overall, a Surveillance Detection Unit is a team of people who work hard to keep people safe by watching out for anything that might cause harm or danger.