stakeout

The detectives were on a stakeout for three days.

刑事たちは3日間張り込みをしていた。

The stakeout finally paid off when the suspect appeared.

容疑者が現れたとき、張り込みはついに成果を上げた。

The detective remained on the qui_vive throughout the stakeout.

探偵は張り込み中ずっと警戒を続けた。