Those details made him wonder if he had acquired the proper evidence.

It's really awkward, isn't it, that need for proper evidence.

You have no right to determine my guilt or innocence without proper evidence.

Often there are controversial claims in articles, without proper evidence.

This early state was not constructed from proper historical evidence of any kind.

Take the whole interview into account or instead make up my mind too soon without proper evidence?

Student facing financial difficulties can apply with proper evidence only once a year for this support.

But due to lack of proper evidence, he's released with a warning.

If one or both parents are deceased, proper evidence of such must be provided.

I see your point You'll have to lay a foundation for that and get it in by proper evidence later.