I'll give you a question, please answer with step-by-step reasoning process. The investigator considered the gun evidence, where did he send it?
Options:
- drawer
- back to its owner
- police station
- crime scene
- holster

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
Police station is a building where the police works from. The investigator is a police.
The answer: police station.