You are listening to NEWS Plus Special English. I'm Liu Yan in Beijing.
China had almost 3 million registered drug users at the end of last year, but, according to the Ministry of Public Security, the real number of those who have used narcotics is thought to exceed 14 million.
That means one out of 100 people in China may have used drugs.
Although the spread of traditional drugs such as heroine has been curbed, the number of synthetic drug users has increased sharply to almost 1-and-a-half million, six times the number of 2008.
Meanwhile, drug users are becoming younger. Among the 480,000 newly discovered drug users last year, 29,000 were under the age of 18, and around three quarters were under the age of 35.
In the past, drug users were mostly the unemployed, farmers, private business owners and migrant rural workers. Now it has expanded to employees of public institutions, freelancers and entertainers.
This is NEWS Plus Special English.
A newly released anti-corruption app has led to an instant increase in the number of public reports on corruption.
Almost 700 pieces of information were received on the first day after China's top anti-corruption watchdog launched the app, allowing the public to report evidence of corruption.
Most of the reports were filed via snapshots, text messages and videos uploaded through the app.
Before the app was launched, there were only around 300 cases reported per day.
The app aims to encourage the public to report any corruption cases of officials who misuse public funds or vehicles, or break any of the frugality rules.
The Anti-corruption authorities have also set up a response mechanism to check, categorize the information, referring them to higher authorities, and respond to whistleblowers.