A manhunt pool was a type of bet held by Quark on Deep Space 9. Participants placed their bets on how long they thought it would take for Odo to complete an criminal investigation.
After Dal Cerys was murdered in 2371, Quark started a manhunt pool. (DS9 short story: "The Manhunt Pool")
In 2372, Quark commented to Odo that the "manhunt pool" reflected that the residents of Deep Space 9 saw Odo as someone who always got his man. (DS9 episode: "Crossfire")