Chapter 59: Elementary School Knowledge Solves the Case
The tape-lift method was suitable for lifting dust prints from smooth surfaces.
In cases like this, where the contrast between the dust print and the surface was not obvious, using tape to lift it could avoid interference from the surface itself.
At Lin Xinyi's request, a servant from the Seha household quickly brought over a roll of wide tape.
The Seha family was wealthy and powerful. Their storage room was larger than most people's living rooms, so naturally, they had all kinds of everyday odds and ends stocked up.
Thus, under old Mr. Seha's nervous gaze,
Lin Xinyi began using the Seha family's tape to lift the fingerprints Seha Sonotoku had left behind.
The lifting process itself was also simple.
Both the principle and the procedure were probably much like how elementary school students used tape to remove a mistaken character from their homework.
He spread the wide tape evenly across the glass, pressed it down firmly, then carefully peeled it away.
The dust-formed fingerprint was transferred intact onto the wide tape.
"But it still isn't very clear, is it?"
The officers asked with concern.
Although the print was easier to handle after being transferred onto the tape, it was still somewhat difficult to make out.
"It's fine. Did you forget what we just did to find the fingerprint?"
"We can still use the light-transmission enhancement method, and it'll be even easier this time."
As he spoke, Lin Xinyi gently placed the wide tape bearing the fingerprint against the black casing of the guest room television.
With the background color changed, the contrast became much clearer.
The fingerprint on the tape immediately became far more distinct.
"Here, use a flashlight. Shine it from the side at a forty-five-degree angle."
Lin Xinyi continued