Juvenile Crime Is Trending Upward Again — 5ch: ‘Still Way Below Heisei-Era Levels’

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The story

The thread started with the question “What’s actually causing the rise in juvenile crime?” and turned into a deep dive into National Police Agency statistics. The number of juveniles arrested for penal code offenses, which stood at 160,000 in the first year of Heisei (1989), has dropped to around 24,000 in recent years — but data was also presented showing that since 2022 (Reiwa 4) the trend has turned upward again. This sparked both “still way lower than the Heisei era” takes and “things feel more dangerous because of shady gig-job scams and violent crime” takes. The thread also debated how to even read the statistics — raw case counts, percentage increases, or rate per population.

What people said

1AnonymousOct 17, 2026 23:21
What's going on here?
3AnonymousOct 17, 2026 23:22
Because they've got no hope for the future
7AnonymousOct 17, 2026 23:32
Re: #3
Kids these days don't even think about the future to begin with
10AnonymousOct 17, 2026 23:37
Re: #7
Well, there's your answer
11AnonymousOct 17, 2026 23:38
I can't imagine what kind of life leads someone into a 'yami baito' (a shady gig job, often a front for scams or robberies)
14AnonymousOct 17, 2026 23:43
Re: #11
It's anxiety about the future. Even back in the Showa era, some people worried about pensions and social insurance down the line, but it wasn't nearly as hopeless as now, and the national debt has ballooned to a totally different order of magnitude
20AnonymousOct 17, 2026 23:50
The number of juveniles arrested for penal code offenses was 160,000 in Heisei 1 (1989), and in recent years it's dropped to around 24,000
21AnonymousOct 17, 2026 23:51
Re: #20
Over just the last few years (since Reiwa 4/2022), it's actually turned back upward.

So is my AI chatbot lying to me?
22AnonymousOct 17, 2026 23:51
Re: #20
What about around the year 2000?
Heisei 1 is basically still Showa anyway
23AnonymousOct 17, 2026 23:52
Re: #21
Even going from 23,000 to 24,000 cases technically counts as an increase
24AnonymousOct 17, 2026 23:54
Re: #23
• Latest data (Reiwa 7/2025): Juvenile arrests for penal code offenses topped 24,000, and the share of juveniles among all penal code offenders rose from 8.8% in Reiwa 4 to 12.2%.
• Minors below the age of criminal responsibility (under 14): the number taken into custody for law-breaking acts also jumped — up 16.0% year-on-year (9,178) in the latest data.

Is this actually accurate?
28AnonymousOct 17, 2026 23:55


Yeah, it's rising alright, but it's still way lower than the old days by comparison
32AnonymousOct 17, 2026 23:57
Re: #28
Quite the V-shaped recovery
99AnonymousOct 18, 2026 00:48
Re: #28
Isn't that just because there are fewer juveniles overall now?
31AnonymousOct 17, 2026 23:57
It's messed up that it's rising despite the shrinking birthrate
And the age of adulthood was lowered too — you're legally an adult from 18 now
35AnonymousOct 17, 2026 23:59
Re: #31
Aren't 18 and 19-year-olds still counted as juveniles too, as 'specified juveniles'?
36AnonymousOct 17, 2026 23:59
It's funny how old guys bash today's youth when things were way more dangerous back when they themselves were young
37AnonymousOct 18, 2026 00:00
Re: #36
The *perceived* level of safety is definitely worse now though
47AnonymousOct 18, 2026 00:04
Re: #36
Well, ordinary crime in general is probably rising too — since 2022. Shady gig-job scams have gotten popular, and it's a fact that public safety has gotten worse
38AnonymousOct 18, 2026 00:01
Re: #37
Well sure, that's just how it feels — you forget all the small incidents from way back
46AnonymousOct 18, 2026 00:04
Re: #38
I'm not talking about big incidents from the news, I mean what it feels like in everyday life. Even my local public bathhouse has seen more kids acting like 'hangure' (quasi-gang delinquents), and they've had to change all sorts of rules because of it
39AnonymousOct 18, 2026 00:02
The rise in random violent crime like robbery and murder is worse than the raw numbers suggest
44AnonymousOct 18, 2026 00:03
Re: #39
Is it actually increasing though?
54AnonymousOct 18, 2026 00:06
Re: #39
Never even heard of a 12-year-old girl committing robbery resulting in injury, not even in the Heisei era
49AnonymousOct 18, 2026 00:05
Juvenile penal code offenses bottomed out during COVID and have been trending upward since
https://hakusyo1.moj.go.jp/jp/72/nfm/images/full/h3-1-1-1.jpg
70AnonymousOct 18, 2026 00:17
Re: #68
As the graph in Re: #49 shows, the most recent peak was around 2000 (Heisei 12)
100AnonymousOct 18, 2026 00:49
Re: #99
As Re: #49 shows, it's the rate relative to the juvenile population that's increasing
56AnonymousOct 18, 2026 00:07

Asked an AI and apparently it happened in 2000 too

1. Robbery cases in 2000 (Heisei 12)
The National Police Agency's official 'Crime in Heisei 12' report lists the number of children under 14 taken into custody for involvement in robbery.
13-year-olds: 25. Total under 14: 30.
59AnonymousOct 18, 2026 00:07
Re: #54
Re: #56
Guess it really did happen
60AnonymousOct 18, 2026 00:09
Digging further back, the National Police Agency's 'Crime in Heisei 14' report also confirms a single 10-year-old was taken into custody for an act classified as robbery. That same year there were 4 twelve-year-olds, 20 thirteen-year-olds, and 25 total under 14.
63AnonymousOct 18, 2026 00:11
It's down from its all-time peak, but 2022 marked a turning point back upward. If it keeps climbing like this, with police already short-staffed, things could get seriously ugly
64AnonymousOct 18, 2026 00:12
I get the feeling the '80s delinquent boom had way more brutal cases — stuff like the 'abekku' couple-murder case and the schoolgirl concrete-drum murder (infamous real incidents from that era)
67AnonymousOct 18, 2026 00:13
Re: #64
Well of course — people's standards being lower in the past is a constant no matter the era. Even in America, crime numbers go down year after year
68AnonymousOct 18, 2026 00:15
Probably around 2000, when the movie Battle Royale was out, was the worst of it. I was still in preschool back then though. I could just ask an AI to check, but it's not really worth the effort
73AnonymousOct 18, 2026 00:21
Juvenile crime is up, but regular crime is up too, so calm down
76AnonymousOct 18, 2026 00:23
Re: #73
Honestly, I think it just dipped during COVID and has basically been flat since around 2020
74AnonymousOct 18, 2026 00:22
Back around 1980 too, when school violence became a big problem, the juvenile crime rate per population also rose
79AnonymousOct 18, 2026 00:25
Re: #74
That generation produced the 'Ice Age generation' (the generation hit hardest by Japan's lost-decade job market), and the Ice Age generation produced Gen Z. It all connects
75AnonymousOct 18, 2026 00:22
It's probably because they were raised overprotected since childhood and grew up never learning what it means to hurt or inconvenience other people
77AnonymousOct 18, 2026 00:23
Re: #75
So does that mean people in the past were even more overprotected?

Background and key points of this discussion

Juvenile crime statistics are published by the National Police Agency in reports like the “Crime White Paper.” The number of juveniles arrested for penal code offenses had two major peaks — in the early 1980s and around 2000 (Heisei 12) — before entering a long decline. As the thread notes, the numbers bottomed out during the COVID pandemic and have turned upward again since 2022 (Reiwa 4) — that’s the recent trend. Where opinions diverged was over how to read this “increase.” Since even a rise from 23,000 to 24,000 cases amounts to a several-percent increase in rate terms, whether you emphasize the absolute change or the percentage change changes the picture considerably. Because the shrinking birthrate means the juvenile population itself is falling, looking at the rate per capita versus the raw case count can also flip the conclusion. On top of that, the 2022 lowering of the age of adulthood means 18- and 19-year-olds are now classified as “specified juveniles,” yet they’re still counted in juvenile crime statistics, so how generations are defined also shapes the debate. Some replies argued today’s level is still low compared to the Heisei-era peak, while others worried about the recent upward trend and more violent incidents — and both claims can hold up statistically, depending on how you slice the numbers.

*This article is excerpted and summarized from the 5ch (Nandemo Jikkyou G) thread “[Sad News] What Is Actually Causing the Rise in Juvenile Crime?“

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