They got off scot-free because of lack of evidence.

由于证据不足，他们得以逍遥法外。

《牛津词典》

Others who were guilty were being allowed to get off scot-free.

其他有罪的人获准免于受罚。

《柯林斯英汉双解大词典》

They can basically ride off into the sunset scot-free.

他们基本上可以趁着日落开溜，逍遥法外。

youdao

"Zimbabwe has gone through processes of announcing national union and reconciliation in the past and these processes have all been geared towards providing impunity and allowing perpetrators to go scot-free,".

VOA: standard.2009.06.21

Were the estates of those dying in 2010 getting off scot free, in the literal sense?

FORBES: The Secret Tax Double-Whammy No One Is Talking About

Mr Obama gets off pretty much scot free, as he has in the half-dozen campaign accounts already published.

ECONOMIST: How Barack Obama beat the Clintons and won the White House

Governments should ensure that the media are able to carry out their work safely and that those who attack them are not let off scot free.

UNESCO: MEDIA SERVICES