Conjecture + Weak circumstantial evidence != conviction (especially for a murder). The only chance they'd have at a conviction is a confession, or a preponderance of evidence (since they lack direct evidence).

1) DNA in his car
The presence of this evidence is highly likely, however it hardly ties him to a murder. The accused could simply claim that he had a talk with Komotoe after he refused to be taken to the hospital -- afterwords he dropped him off at a bus/train station on his way to work. The DNA in the back of his car doesn't even prove that he's responsible for dumping a body, let alone premeditated murder. Hell, if he pretends Komotoe never even mentioned the murders he couldn't even be charged as an accessory.
2) DNA at the Crime Scene

Considering it was premeditated murder with no signs of a struggle it's probably unlikely that he left traceable DNA evidence behind at the crime scene. If he did it would likely be something like a hair which amounts to significant circumstantial evidence. However, that evidence alone isn't enough to make a conviction. Furthermore, they seemed to have already done DNA testing of that crime scene... if there was evidence they probably would of found it already.

Plenty of times in this show the evidence is merely circumstantial or simply not strong enough to present a clear and defined case.

Instead, the common theme is the perps will just give themselves up and confess, which makes it easy for the police to prosecute with whatever evidence they do have.

I agree. I realized that some focus of the face off of Conan and Suspects is about cornering the suspect. In the process of cornering the suspect by presenting them little of the evidence makes the suspect commit more mistakes in their crime. So in the end, the suspects have already no choice but to confess their crime.

So I think your explanation is a little confusing.

Usually conviction means you’ve been proved guilty of a crime, which is why when I first read that I thought it was very strange. To be charged with a crime is to be put on trial for a suspected crime, to be convicted means that they had sufficient evidence to prove you’re guilty.

I’m not sure if there’s a rate that shows how many people are charged with a crime when they’re arrested for one but I believe that’s what you mean.

By this interpretation, I believe what you meant to say is the rate at which someone was arrested for a crime, and then subsequently charged with that crime/a crime is 99.3%. Whether or not the charges hold up in court is a completely different matter.

I’d imagine that that’s the case, as almost always police are going to press charges against someone they arrest. After all, arresting someone means you had enough belief that they committed a crime, and not that they’re a random person. Idk about Japan, but in America that statistic would probably be very similar, as police can only make an arrest when they have probable cause that a crime was committed. (Detaining someone doesn’t count as Arresting)

And by your explanation, yes, that’s probable cause. You are suspicious that someone committed a crime, and then you have some form of evidence to back up your suspicion, thus making it probable. Reasonable suspicion backed up with some level of concrete evidence is Probable cause. Concrete evidence being evidence that should only apply to the individual you originally suspected of the crime. Something that is unique to them, or supposedly unique to them.

never compare the Western/American systems to the Japanese police, prosecution, judicial, and penal systems. the similarities are minor and merely cosmetic. you need to study the Japanese systems in-depth before you comment on how cases should be handled by their systems.

otherwise, you're just waving your ignorance like a big red flag.

Man this case is my least favorite

hmm. interesting.

Yeah I know

conan that laugh was creepy HAHAHAHAHAHAHHA

mouri solving algebra :D

So it was not komoto's son but someone else I was close though, fuyuki should have been killed too. Something those guys did 10 years ago came to huant them.

Mori didn't even know the culprit but boasts he solved the case, he is a very gullible guy.

It's so rare for Kogoro to guess something right in DC. His theory about the case makes sense so I kinda doubt my first theory too.

Yeah