"Conan, take out the bottle cap you found."
"Yes..."
Fujino immediately transformed into an evil capitalist, making Conan into a laborer.
Conan gave him a dead-fish stare and reluctantly took out the bottle cap inside the evidence bag. "This is the bloodstained cap that originally belonged to that drink bottle..."
The two beside them were immediately displeased. "I mean, does this thing even count as evidence?"
"Even if it has Shōko's fingerprints, she must have gotten them on it at the Convenience Store, right?"
Conan looked at the two, the corner of his mouth tilting slightly upward. "But if Miss Kutsu's fingers touched that cap, then we could definitely use Luminol reagent on her fingers to detect a blood reaction. Even if the fingerprints on it were left at the Convenience Store, wouldn't those bloodstains prove that she handled the cap?"
However, just as he finished speaking, Fujino suddenly refuted him. "No. Those bloodstains can prove that she handled the cap, but they can only serve as circumstantial evidence. Although they can be considered evidence in terms of high probability, if you want direct evidence, you need to test DNA from her hands."
"Not to mention whether she even touched the bloodstains. Even if she did, if she noticed her bloodstained fingers and contaminated them with her own saliva or rinsed them with water, extracting DNA would become extremely difficult."
Conan: "...?"
Why was this old man tearing down my argument?!
Under Conan's resentful gaze, Fujino continued, looking toward the other two. "Still, what you two said about fingerprints reminded me of something. By common sense, a normal person picking up this kind of large bottle wouldn't lift it by touching the cap, would they?"
"Even if someone did lift it in such an unconventional way, their fingerprints would only