[b]Masako Yamamoto[/b]

Speaking to Helmut, Masako simply shook her head and responded, “I don’t have the right tools to say. But I will see what I can find to help figure this out.”

That night, Masako had found nothing. She did not participate in the stakeout. The next morning, that Saturday, however, she returned with a small satchel. Ignoring the police officer’s commentary, she knelt by the body and opened her bag. From it, she produced a roll of measuring tape, a few clothespins, an eyebrow pencil, a pen, and a notepad.

On the notepad, she wrote the date with the pen, then [i]噛み跡の測定[/i], and finally [i]噛み跡1[/i] on the next line. After that first heading, she wrote four measurements:
[i][list][*]弧
[*]幅
[*]深さ
[*]歯の長さ[/list][/i]
Then, she set the notepad on her satchel. Taking the brow pencil, she wrote the number 1 in Arabic numerals near it. With the measuring tape and clothespins, she pulled the tape along the arc of the bite mark, measuring it from end to end. Using the pins to mark where her finger sat, she then wrote down a number in millimetres after [i]弧[/i]. She repeated this process, measuring the straight width of the mark, from edge to edge, tracing a faint line with the pencil along her measuring tape before moving to take down the measurement. Then, using what seemed to be a rough estimate of the midpoint based on her napkin maths on a separate piece of paper, she made a mark along the previous line and took two more measurements. First, she took a measurement of the distance from the point to the outer edge of the bite mark—where the incisors would sit in the jaw. Then, for her last measurement, she found the distance from the outer side of the tooth mark to the inside of it, at last filling in the last section of her little list.

She repeated this for several bite marks, before stopping in the middle of measuring one when Sonja finished speaking, and said, “If the bodies are still around, I can also look at them.”

Looking at her notes for a moment, she added, “The bites I have measured are all from the same person, I think. I will measure the rest, but right now, it looks like there is only one person who did the biting.”