In particular they argued investigations should be carried out in confidence and innocence should be presumed until guilt was proven.

他们尤其主张调查应该在保密的情况下进行，并应采取无罪推定的原则。

youdao

According to the presumption of innocence principle, any person should be presumed to be innocent without a verdict from court in accordance with the law.

根据无罪推定原则，任何人未经法院依法判决前应该被推定为无罪。

youdao

In particular, they argued, investigations should be carried out in confidence and innocence should be presumed until guilt was proven.

ECONOMIST: Chinese ethics