A Japanese 'yakuza pensioner' accused of killing his enemy about 15 years ago was captured in Thailand after tattoo photos all over his body circulated on social media.
Police arrested a man who had been one of the yakuza bosses-or the Japanese mafia, known for being cruel and influential-on the charge of killing an enemy in 2003.
In addition to Yakuza, quoted kumparan.com, there are several other criminal organizations worldwide. These organizations have thousands of members and have activities around the world.
- Triad - China
Triad is a term that describes many organized crime groups. Starting from China, the Triads progressed to Taiwan, Hong Kong and Singapore. Triads are also growing in the United States, Britain, Canada, Australia, New Zealand and some other countries.
It is estimated that if they are united, the number can reach 2.5 million people. Of the many organizations that exist, Triad is currently divided into four major parts, namely Wo Hop To, Wo Shing Wo, Sun Ye on, 14K (Sap Sie Kie) and Luen.
Wo Shing Wo is the oldest organization amongst others, it is thought they existed since the 1930s. Meanwhile, Sun Ye on has the most members. Sun Ye On members reach 55 thousand worldwide. In addition to Hong Kong, Sun Ye is also suspected of having members in Europe, such as France and Belgium.
Trial transnational crimes include counterfeiting money, narcotics trafficking, and people smuggling. US government data in 2013 showed there were 100,000 Chinese people smuggled into the United States by Triads. They were forced to work by the Triads to pay off debts.
- Sicily - Italy

In addition to the Yakuza and the "Triad" gang, there are also other great gangs, the Italian Sicilian Group. Sicily is the name of the Italian island in the Mediterranean Sea. Initially, the Sicilian mafia was a family, then developed into several criminal gang clans.
The influence of the Sicilian mafia continues to grow. Until the late 1970s, the Sicilian mafia was a group that controlled drug trafficking around the world. Entering the 21st century, after many of his family members were arrested, the group was weakened.
Currently, although weakened Sicily is still active with the same vision.
- Russian Mafia - Russia

The Russian Mafia is one of the largest criminal gangs in the world. According to professor of criminology at Oxford University, the mafia group is divided into 10 clans that have their own territory.
They have a council of 12 people. The Council organizes and runs criminal gang activities in Russia. It is estimated that the Russian mafia consists of more than 9,000 members.
Like other groups, they are also involved in drug trafficking and people smuggling. The Russian mafia gang plays a major role in the spread of heroin from Afghanistan.
- Sinaloa - Mexico

Sinaloa is the name of Mexico's largest drug cartel. They are the liaison of drug trafficking between South America and America. Last year, this cartel was the most active narcotics smuggler to the United States.
Drug consumption in the US is estimated at USD 100 billion per year. As many as 60 percent of the total consumption is controlled by Sinaloa. According to the Washington Post, between 1990 and 2008, Sinaloa smuggled up to 200 tons of cocaine to the United States.