The companies may no longer be operating, and recovering previous evidence is likely to be virtually impossible.

Suddenly, and against all previous evidence, everyone was vitally interested in their paperwork.

There has been previous evidence of Mars' geologic activity.

Corroborated the previous evidence in every respect but one.

All previous evidence suggested that the ancients would have stripped everything before they left their settlement behind.

In either case, the site suggests a more gradual transition than previous evidence had indicated.

But all previous evidence of occasional Indian cannibalism, though increasingly persuasive, was still circumstantial.

This stage also involves looking up and evaluating previous evidence from other scientists, including experience.

If the answer is already known, a different question that builds on the previous evidence can be posed.

The inquiry considered more than a million pages of previous evidence as well as hearing from witnesses.