The government will consider making convicted sex offenders wear GPS tracking devices in an effort to strengthen measures that prevent recidivism, a source familiar with the matter said Wednesday.

The idea, along with tougher punishments for school teachers who commit sexually lewd acts, was added to a draft policy plan the government aims to submit at a meeting Thursday arranged to discuss steps against sexual violence and crimes, the source said.

The plan, to be implemented within three years, is expected to be reflected in the annual economic policy blueprint set to be compiled in July.

The government will study overseas laws and monitoring technology for its discussion on the issue. It will also consider tougher rules on teachers who commit obscene acts, including dismissal.

The draft plan also includes introducing education to prevent sexual violence as well as strengthening one-stop support centers so they can offer the victims of sex crimes integrated services such as mental health care and legal aid.

According to the Justice Ministry's 2015 White Paper on Crime, the recidivism rate for sex crimes was 13.6 percent, based on a study of around 1,800 people who had been convicted of crimes including rape and forced indecency during the 12 months from July 2008.