2 sentences

1. 我们来收集犯罪现场的证物。

   wǒ​men lái shōu​jí fàn​zuì xiàn​chǎng de zhèng​wù.

   We're here to collect evidence from the crime scene.

   Source: OpenSubtitles

2. 警方在犯罪现场发现了一些重要的证物。

   jǐng​fāng zài fàn​zuì xiàn​chǎng fā​xiàn le yī​xiē zhòng​yào de zhèng​wù.

   The police found important physical evidence at the crime scene.

   Source: Dong Chinese Dictionary