In question
Definition 1 of 1
Pro Tip 1/3Contextual Clues
Look around the phrase for hints about what specifically 'in question' refers to. 
The report in question was on the CEO's desk yesterday.
Pro Tip 2/3Immediate Reference
The phrase 'in question' often follows directly after the subject it identifies. 
The suspect in question was seen leaving the scene.
Pro Tip 3/3Narrowing Down
Use 'in question' to single out one particular item from a general category. 
Of all the cakes, the one in question had a cherry on top.