Definition of on the case in English:

on the case

phrase

  • 1Actively engaged in an official investigation.

    ‘officers on the case are unable to find a motive’
    • ‘Then Reed is murdered, and Turner sets himself on the case.’
    • ‘Glad to know the police are on the case, of everyone doing anything they don't like, legal or otherwise.’
    • ‘The opening episode finds the pair on the case of a lawyer friend found dead after he represents a hacker who's allegedly spilled sensitive government secrets.’
    • ‘I think we should get Poirot on the case.’
    • ‘Cops got on the case around March 19 and her abductor was found dead of an apparent suicide on March 31.’
    • ‘Soon, Inspector Sylvester is on the case - he interviews the manager of the fashion house.’
    • ‘There's a frantic scramble to the crime scene at Buckinghamshire CID, and over 65 policemen are on the case of a missing train engine.’
    • ‘Ace detective Harry Bosch is also on the case in other exciting Michael Connelly crime-fiction novels.’
    • ‘Hundreds of officers are on the case, working as hard as they can even though they are physically drained.’
    • ‘But of course Sherlock knew better, and got on the case quick sharp.’
    1. 1.1 In the process of dealing with a particular situation or task.
      ‘the city council's pest control team are on the case’
      • ‘I mean, as long as you can make it funny, Dirk's on the case.’
      • ‘Just think what Juventus might do, if only they could get Joe Kinnear on the case.’
      • ‘A Coronation Street spokesperson has acknowledged the complaints and promised that they are on the case to sort out the cobbles.’
      • ‘In a business world that routinely runs on big data, it's time to put computers on the case.’
      • ‘Just like cooking, the results are all about how you put the ingredients together, and we've got some world-class chefs on the case.’
      • ‘If you've ever wondered how big sneeze droplets can get, science is currently on the case.’
      • ‘Luckily, her aunt Joan is on the case to remind her of the important things in life.’
      • ‘Maybe the new mayor, who is the old mayor, could get on the case properly this time.’
      • ‘Now, the full, harrowing story is seeing the light of day for the first time since the press was on the case back in the 90s.’
      • ‘Those pieces are long overdue to be gathered and published; one trusts that some enterprising person is on the case this very minute.’