in the case of
Regarding, in the matter of, in that instance. For example, In the case of James, they decided to promote him to the next grade. [Late 1300s] Also see in case, def. 2.
The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.