<Anchor> The

authorities are struggling to come up with countermeasures, saying that if Jo Doo-soon, a child sex offender, is released in December, he will return to where he lived.

The victims' families said they had decided to leave Ansan, saying it was difficult for Jo Doo-soon to re-isolate.

This is reporter Jo Yoon-ha.

<Reporter> In

response to Doo-soon Cho's remarks that he would return to Ansan after being released from prison, the victim's father asked him to keep his promise in 2009, saying that the Minister of Justice at the time of Gwi-nam Lee declared permanent quarantine.

However, the victim's father said the victims' family eventually decided to leave Ansan when the government actually drew a line for re-quarantine, including detention.

In a phone call with SBS, the victim's father said, "I am leaving Ansan because I can't stop Mr. Jo from coming to Ansan, and I can't quarantine it. We made up our mind to move."

It is said that the victim, who had been reluctant to leave Ansan, agreed to move.

However, it has not been decided when and where to move, and it is known that economic issues must be considered.

The family's decision to move was largely due to the anxiety that Jo Doo-soon could face him again when he returns to Ansan.

Victims' families are appealing that they cannot be relieved with measures such as expanding CCTV, 24-hour location tracking, and one-on-one dedicated surveillance.

Countermeasures are needed to prevent crime victims from having to leave their homes to avoid the perpetrators.

(Video editing: Jaesung Lee, CG: Junho Lee)