Andrew said he was just making a simple record, and indeed it was a very simple one.
After Zheng Qing followed him to the Trident Sword office, he simply filled in a few forms according to the procedure—including his identity information, academic registration, etc.—and then finished by signing off on documents like the assistance in investigation notice, on-site inspection record, and interrogation transcript. The whole process took just over half an hour.
Of course, during this time, the staff of the Trident Sword were always patiently tending to the Speaker Flowers and Shadow Preserving Herbs in the flowerpot, ensuring that the entire investigation process was well-documented.