When to use detective in Korean
Korean: 형사[ hyeong-sa ]

When to use it
A detective (형사) is a police officer who looks for clues and tries to find criminals. This word usually means a person who investigates crimes. You often see it in movies, TV shows, and stories, but it can also describe a real job.
Example sentences
저 사람은 형사예요.
That person is a detective.
우리 삼촌은 형사예요.
My uncle is a detective.
형사가 우리 집에 와서 질문했어요.
A detective came to our house and asked questions.
공원에서 형사가 사람을 찾고 있어요.
A detective is looking for someone in the park.
학교 앞에서 형사를 봤어요.
I saw a detective in front of the school.
공항에서 형사가 가방을 확인해요.
A detective checks bags at the airport.