Rep. Tae Young-ho of the main opposition People Power Party made the remark during an interview with Yonhap News Agency while in New York for a parliamentary audit of the South Korean Embassy to the United Nations.
"We shouldn't lean toward the left or the right for the North Korean human rights issues depending on the government," Tae said. "It is important that we always take a universal, consistent stance on the North Korean human rights issues."
North Korea has long been accused of gross human rights violations, including torture, public executions and maintaining tens of thousands of political prisoners. Pyongyang has bristled at such criticism, calling it a US-led attempt to topple its regime.
Critics have said the human rights issue has been sidelined over the past few years under the liberal Moon administration on concerns that it could anger Pyongyang and hamper efforts to resume denuclearization talks.
As part of efforts, Tae urged South Korea to co-sponsor a UN Human Rights Council resolution on North Korea's rights violations, which the Seoul government has dropped out of since 2019 to avoid tensions with Pyongyang amid its efforts to resume inter-Korean dialogue.
"The two Koreas' simultaneous joining of the UN 30 years ago helped the Korean Peninsula maintain peace over the period," Tae said. "It is important how the two Koreas can reunite and maintain peace down the road."
In this year's resolution, the council voiced concerns over rights violations, which it said constitute crimes against humanity in many instances and stressed that the situation may further deteriorate due to the COVID-19 pandemic.
Tae said he couldn't even imagine he would be at the UN as the first defector-turned-lawmaker attending the parliamentary audit on the overseas mission, just across from the North Korean representative's office.
"When I came to (South) Korea five years ago, I couldn't imagine that I would be a former (North Korean) diplomat and a lawmaker attending a parliamentary audit on the Korean Embassy overseas," Tae told Yonhap News after the parliamentary session.
The former No. 2 diplomat in North Korea's Embassy in London said the Moon Jae-in administration should pay more attention to the human rights abuses under the Kim Jong-un regime in order to take a step forward for peace on the Korean Peninsula.
Tae made the remark after President Moon Jae-in last month renewed his calls for the declaration of a formal end to the 1950-53 Korean War, which ended in a truce, not a peace treaty, during his UN speech. (Yonhap)