Tā zuìzhōng juédìng zhǔdòng tóu'àn, xiàng jǐngfāng rúshí jiāodài.
He ultimately decided to turn himself in and give a truthful account to the police.
Tips
usage
投案 is often used with 自首 as 投案自首 - to voluntarily turn oneself in. This combination carries a strong implication of taking moral responsibility and often results in reduced sentencing under Chinese law.
