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It is also difficult to establish what constitutes 'independent corroborating evidence'.

Several other groups claimed responsibility, without any corroborating evidence or verified data.

As I have explained, there is too much corroborating evidence to support it.

Any class of transporter can lead to the same observation, and additional corroborating evidence is usually required.

"But without any corroborating evidence to back up her statements, we had to give the defendant the benefit of the doubt."

There was no death certificate or other corroborating evidence, and the doctor who signed the original letter died in 1953.

So far, none of the people who knew him, or Beth, could give her any corroborating evidence.

However, there is no corroborating evidence that he was involved in either of those events.

"It is believable, but we do need some additional corroborating evidence."

However, there is no corroborating evidence to support this claim.