He watched each step of the processing carefully, saying nothing, making notes, and occasionally asking Wang to put a question to a manager or worker.

福琛仔细观察着工人们的每个步骤，一言不发的作着笔记，偶尔派王姓仆人去问经理和工人们一些问题。

youdao

There was a briskness about him, a quickness of action, and in those early weeks, he followed the evidence closely, always leafing through his files, listening carefully to the witnesses, and making pages of notes.

BBC: Shipman in the dock