Meaning of zì shǒu:
zì shǒu
自首
Verb
to give oneself up; to surrender (to the authorities)
Fànrén juédìng zì shǒu.
犯人决定自首。
The criminal decided to give himself up.
Xiǎotōu tōu dōngxi hòu qù jǐngchá jú zìshǒu.
小偷偷东西后去警察局自首。
The thief went to the police station to surrender after stealing things.