It's original value was to avoid the difficulty of producing evidence because of the suppressionofevidence.
其原初制度价值在于：防止证据湮灭、避免举证困难。
2
The inspectors found no evidence which supported any allegation ofsuppression of official documents.
这些检察官们找不到证据证明对封锁官方文件的任何指控。
《柯林斯英汉双解大词典》
3
Then the D-S evidence theory is applied to calculate the best size of the filtering mask and perform background suppression filtering based on the protection zone.