english
1
general::
see IN ONE'S INTEREST.
American Heritage Idioms
2
general::
Phrase(s): in the interest of someone or something as an advantage or benefit to someone or something; in order to advance or improve someone or something. • In the interest of health, people are asked not to smoke. • The police imprisoned the suspects in the interest of the safety of the public.
McGrawhill's American Idioms And Phrasal Verbs