The security manager learned that a sneaker inside the warehouse had tipped off the police about stolen shipments.

保全經理得知，倉庫內部有一名線民向警方通報了被竊的貨物。

During the fraud investigation, the finance director worried that a sneaker might expose the hidden accounts.

在詐欺調查期間，財務長擔心會有告密者揭發那些隱藏帳戶。

Hotel staff whispered that the new night clerk was a sneaker working with local detectives.

飯店員工私下議論，說新來的夜班櫃檯人員是和當地警探合作的線民。