also: しちどたずねてひとをうたがえ
expression
search thoroughly before suspecting someone of theft; be sure of your facts before accusing
A proverb advising careful investigation before casting suspicion. Literally: 'Search seven times, then suspect the person.'
「七度尋ねて人を疑え」という諺があるように、まずはよく探すことが大切だ。
As the proverb 'Search seven times before you suspect someone' says, it's important to look thoroughly first.
A traditional Japanese proverb. The exact origin is uncertain, but it reflects a common cautionary theme in folklore.