Who is the most intelligent criminal in history? Why?

His name is Liu Zhaohua, who won the second prize in the chemistry competition when he was in school, taught himself to make 31 tons of drugs(methamphetamine), with a purity of 99%, and became China's largest drug lord（He had only 9 years of schooling） Until now many drug dealers are secretly inquiring, what method Liu Zhaohua used to make methamphetamine, what crystallization method he used.

Synthesized with various common chemical reagents, not based on ephedrine production. He changed the substrate and catalyst of the reaction and adopted the continuous generation + continuous crystallization method in 1999. In terms of daily production, he can easily crystallize 1,000,000 grams of methamphetamine a day, which is one ton, and if it can be sold, five tons a day is not a problem. In terms of conversion rate he claims to have a conversion rate of 90%. Such a high capacity, such a high conversion rate, drug quality is still very good, and the production process is very environmentally friendly and pollution-free, even more environmentally friendly than some pharmaceutical plants, so much so that many top chemical and chemical experts and scholars cannot believe.

Until today, there is not a single drug maker in the world, including some professor-level ones who can reach the overall quality (purity, crystallization, and appearance) of the meth produced by Liu Zhaohua. They may have no problem with the theoretical aspects, but the process technology they master cannot do it.

He has a high IQ and an extremely strong psychological quality. He escaped from Guangzhou on his bicycle under the circumstances that the police had barricaded him all over the city, and carved "Liu Zhaohua, came here to visit" on the cave where he had been hiding, which made the police furious. At that time, Liu Zhaohua was staying in room 818 of the President Hotel in Guangzhou. The police were quickly dispatched and rushed to the President Hotel in Guangzhou, and at this time Liu Zhaohua had just returned to the hotel from outside. At the critical moment, Liu Zhaohua did not immediately twist and turn to flee the scene, but made an amazing move. He and the investigator took the same elevator, see the investigator pressed the 8th floor; Liu Zhaohua immediately pressed the 7th floor. And on the day of November 4, the Guangzhou police deployed a large number of police officers to impose martial law on the entry and exit gates and major traffic routes in the city. In particular, the suspicious vehicles leaving Guangzhou were checked, and the check was very tight. Buses, cabs, private cars along with cars hauling goods were checked one by one. Liu Zhaohua, who walked out of the President Hotel, knew very well that there would be checkpoints to arrest him at all major traffic roads in Guangzhou. The police will definitely check the vehicles entering and leaving the intersection of Guangzhou, so Liu Zhaohua chose a way to escape that no one expected - a bicycle. For Liu Zhaohua this is naturally the best disguise, Liu Zhaohua just rode a bicycle to escape from Guangzhou under the heavy police siege. And this is already the second time Liu Daohua slipped away from under the nose of the police.

（Liu Zhaohua’s second wife）

He has three wives in the same time and four children, and his golden words are popular in the love scene: "The first wife is my favourite, the second wife is my most loving, and the third wife is my most loving.

In 2000, Liu Zhaohua settled in Quanzhou County, Guilin, Guangxi under the name of Li Senqing. He lived here, got married and had children, and was well known in the area. The neighbors of this "Mr. Li" said that he was kind to people, but rather petty, a rich man with the air of a small citizen. This time, Liu Zhaohua disguised very successfully. In fact, during the escape Liu Zhaohua also became an important guest of the local government. He leased more than 24,000 acres of land in the Phoenix Forestry in Lingui County, Guilin, claiming to complete a project with a total investment of 300 million yuan in three years. So, why is he going to do by renting so much forest land? Liu Zhaohua claimed that he did not have a sense of accomplishment in doing methamphetamine, while planting red bean fir gave him a sense of accomplishment because the area he planted was the largest in the world.

Liu Zhaohua is both cunning and arrogant; he does not follow common sense and believes that the most dangerous place is instead the safest. This is an important reason why he successfully escaped from the chase several times. During the years in Guilin, Guangxi, Liu Zhaohua made a big show of running his own business. The most important thing is that he did not shy away from getting himself into the newspaper and even became a local celebrity. On February 6, 2013, the Guilin Evening News reported a full-page story about a resident who bravely fought the thieves, and the resident who bravely caught three thieves was Liu Zhaohua, who changed his name.

After being caught, he said to the police in prison: "You can ask what you want to know, make a list, but don't play with my intelligence, you can't play with me."

In court he sophomorically argued, "I don't sell my drugs to domestic people, only to foreigners; foreigners used to open China's doors with opium, and I should open their doors with meth too."

In the eyes of the police, he is a misguided chemical genius who has cleverly escaped mass arrests by the police many times; in the circle of drug production and trafficking, he is a legend that cannot be replicated; in the eyes of his mother, he is a good student; in the eyes of his three wives, he is a master of "time management"; in the eyes of his children, he is a cold-blooded father who only cares about birth but not nurturing.

Some people once described Liu Zhaohua as a real-life version of China's "Walter White(Breaking Bad)". The profession does not agree with this statement, because even Walter White, who has the aura of a protagonist, is several notches below Liu Zhaohua, both in terms of drug production technology (including methamphetamine quality) and production scale.

In terms of influence, the fictional Walter White is even more incomparable. Liu Zhaohua is very famous in the global drug trafficking and drug production circles, and the Mexican drug lord "Shorty" Guzman, who was just released from prison in 2002, immediately sent his pals to inquire about the whereabouts of Liu Zhaohua, who was on the run, and wanted to pay a lot of money to seek cooperation.

In terms of life experience, Liu Zhaohua is also more legendary than Walter White in the movie and TV series. He has been a soldier and a bailiff. He has made meritorious achievements and received commendations. During his time in office, he was the backbone that every leader wanted to focus on training. If not engaged in drug trafficking, he has a bright future.

Of course, in terms of social harm, Liu Zhaohua is also worse, as he made 31 tons of methamphetamine. With his own power to influence the behaviour of several industries in China, for example, the use of hydrochloric acid in some corporate factories, research institutions, schools, etc. need to be reported first.