Answer: detection

AnswerCrossword Clue
DETECTIONPolice business.
DETECTIONWork for Sherlock.
DETECTIONPerry Mason's forte.
DETECTIONNero Wolfe's forte.
DETECTIONWhat sleuthing is all about
detectionThe action or process of identifying the presence of something concealed
detectionthe act of detecting
detectionThe work of a detective in investigating a crime