A micro blog run by the prison management bureau on Sina Weibo, Twitter's Chinese counterpart, has been in the public spotlight for its posts of confessions from former government officials who are now inmates.

One of the most popular posts reveals the confession by a former police officer from Guizhou who was sentenced to 19 years in jail mainly for the crime of concealing the crimes of others. The confession recalled his life from a rural resident to a local police officer and expressed his regrets.

The official micro blog, which was awarded as one of the top 10 micro blogs on government affairs last year, has posted 29 confessions on Sina Weibo since Aug 16, 2013.