过去数不清的冤假错案和枉法行为使人们伤痕累累。

The past has been scarred by countless mistrials and perversions of justice.

苏联的文化政策曾经历了一个由极左滑向极右的过程，先是对“持不同政见”的作家采取高压政策，制造了不少冤假错案。

In the extreme left period, the Soviet Union practised a high-handed policy towards dissident writers and made lots of framed-up and wrong cases.