Sep 13, 2017 10:28:00

A fierce man who explains the complicated and mysterious technique of junior high school girl ticket fraud in an easy-to-understand sequence diagram on Github appears

A 21-year-old woman was mistakenly arrested for reselling a live ticket for 'Kanjani Eight' in Tokushima Prefecture and deceiving the price. A 15-year-old female junior high school student who hid this woman was the true criminal of the fraud, but it is difficult to grasp the whole picture in the case with many characters. However, a fierce man who uses a sequence diagram to understand the whole picture of the incident as if to cut off the swords. The sequence diagram is available on Github.

Female junior high school student ticket fraud case · GitHub

https://gist.github.com/shunirr/2bd6a5a00b966e1e534b443790c68eda

It is clear from the text of the news that it is difficult to understand the content of the case. The following is the text by Jiji.com. It is impossible to grasp all the characters and grasp the structure of the case only with sentences without figures.

Misidentified arrest for ticket fraud = 21-year-old woman detained for 19 days-Tokushima Prefectural Police: Jiji.com
https://www.jiji.com/jc/article?k=2017091101026

The Tokushima Shimbun explains using figures.

Junior high school girls, getting information about women and committing crimes Tokushima ticket fraud [Tokushima News] -Tokushima Shimbun
http://www.topics.or.jp/localNews/news/2017/09/2017_15051767495938.html

'Structural diagram of the case' centered on the behavior of the girl published by the Tokushima Shimbun. The outlook is pretty good, but even with this figure it's not clear how much money the girl has stolen.

So, the following is a sequence diagram showing the whole picture of this fraud case posted on Github.

The point of this scam is here. A female junior high school student who was the criminal responded to a resale offered by a woman who was arrested for 80,000 yen, and tricked two other high school girls to 'sell for 40,000 yen', for a total of 80,000 in the woman's bank account. Having deposited yen. The resale woman who was arrested for misidentification sent a ticket to the junior high school girl, thinking that the criminal's junior high school girl had paid for it.

After that, the junior high school girls resold the obtained tickets for 65,000 yen without sending them to the high school girls, and got 61,880 yen after deducting the commission. So, even though the two high school girls each made a deposit of 40,000 yen, they suffered the damage of not being able to get a ticket.

Then, the investigation was started from the complaint of a high school girl, and the resale woman who sent the ticket was misidentified and arrested. Tickets were bought and sold on Twitter, but the investigation was difficult because the tweet was deleted.

So , you can download the sequence diagram created by Mr. shunirr from the following Github page, which makes complicated cases clear at a glance using the sequence diagram used in system design.

Female junior high school student ticket fraud case · GitHub
https://gist.github.com/shunirr/2bd6a5a00b966e1e534b443790c68eda