on the hunt

Prepositional phrase

(typically with for) In aggressive pursuit; searching relentlessly.

Japanese Meaning

執拗に探し求める、必死に追い求める / 熱心に、そして攻撃的な態度で狩りをする

The detective was on the hunt for clues after the break-in.

刑事は侵入事件の後、手がかりを必死に探していた。

Sense（1）

(typically with for) In aggressive pursuit; searching relentlessly.

Police are on the hunt for the suspect.