Plea bargain
In China, a plea bargaining pilot scheme has been introduced by the Standing Committee of the National People's Congress in 2016. For defendants that faces jail terms of three years or below, agrees to plea guilty voluntarily and agree with prosecutors' crime and sentencing proposals, will be given mitigated punishments.
Plea colloquy
Pursuant to the Sixth Amendment to the U.S. Constitution, a criminal defendant has the right to be represented by an attorney during a plea colloquy; failure of the state to provide an attorney to an indigent defendant during such proceedings is grounds for an appeal. It is possible - but very difficult - for a defendant who "is" so represented to have a plea thrown out due to ineffective assistance of counsel. The defendant must make a positive showing that but for the erroneous advice of counsel, he would not have chosen to plead guilty.