A North Korean defector has been indicted on charges of breaking a South Korean law banning the spread of propaganda leaflets along the inter-Korean border, prosecutors and attorneys said Friday.

Park Sang Hak is the first person to be indicted under the new law, which critics say puts a policy of engagement with North Korea above human rights.

For years, Park and others like him have launched balloons into North Korea loaded with propaganda leaflets urging North Koreans to rise up against their authoritarian leader, Kim Jong Un. Under the law, which went into effect last March, sending such leaflets was made a crime punishable by a fine or a prison term of up to three years.