署 is one of the most commonly used Japanese kanji, and it also has a lot of special readings in addition to the standard onyomi and kunyomi readings.
ONYOMI 音読み
KUNYOMI 訓読み
ショ sho
Examples
「警察だ。ちょっと署まで来てもらおうか」「な、なんで?」「こんな街中でドンパチやって罪にならないわけないだろうが!!」“This is the police. Would you mind coming down to the station?” “W-why?” “You can’t think it’s not a crime to go shooting guns off in the middle of town?!”