फ़्लैशकार्ड

'In case of' means 'if this event happens'. You use it to introduce a possible problem or unexpected event so you can provide a safety plan or precaution. 'In the case of' means 'regarding' or 'as for'. You use it when you want to focus your listener or reader on a particular item, person, or category under discussion.

In case of heavy smoke, leave the studio through the rear exit.