Chapter 22 - Bull House Impound

BioShock Infinite guide · Booker raids the local police station to locate confiscated machinery ✓ Checked against sources

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Booker DeWitt and Elizabeth enter the police impound facility in Shantytown to retrieve Chen Lin's confiscated gunsmithing machinery. Upon discovering the machines are far too heavy to transport manually, Elizabeth opens a large Tear into another reality where the equipment was never seized. They step through the Tear and exit the newly altered police building to return to Chen Lin's workshop.

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Kinetoscope ("Fitzroy Spotted!"): In the first side office on the right just past the front entranceVoxophone ("Terminated" by Daisy Fitzroy): Underneath an office desk adjacent to the first-floor interrogation roomVoxophone ("That Goddamn Key"): On a desk next to the locked chest in an upstairs office on the second floorInfusion: Inside the key-locked chest located in an office on the second floorInfusion: Inside the second-floor evidence room requiring Elizabeth to pick a 5-lockpick lockPiece of Gear: Inside the 5-lockpick evidence room alongside the Infusion vialVoxophone ("Kindling"): Sitting on a desk near the Columbia Authority seal after stepping through the Tear and heading upstairsThe locked chest containing an Infusion on the second floor requires a key found outside this chapter inside the cellar of The Graveyard Shift bar in Shantytown, and entering the Tear transitions the environment into an alternate timeline where prior uncollected items may become unreachable.

Secrets

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A locked evidence room on the second floor requires 5 lockpicks for Elizabeth to crack, concealing an Infusion vial, ammunition, and a piece of gear.

Enemies

Columbia Police Officer

Standard armed precinct guards deployed on both floors who attack Booker in close-quarters combat.

Tips

Fully sweep both floors and unlock all rooms and chests before triggering Elizabeth's Tear in the basement, as transitioning dimensions irreversibly alters the building's state.

Not listed for this area: shops and people.

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Chapter 21 - Shantytown

Chapter 23 - Bull Yard

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Sources checked: youtube.com, ign.com, gamespot.com