For now, the need is to investigate thoroughly and without fear of where the evidence may lead.

"And they were not allowed enough time to investigate thoroughly."

I would like to ask that this matter be thoroughly investigated.

Time must always be taken to thoroughly investigate all claims.

Had such a death occurred in my own home, I should have investigated thoroughly.

Before we began to conduct business, I had him investigated thoroughly.

"I think it's difficult to rule out anything without thoroughly investigating it."

We should, therefore, thoroughly investigate the systems which have been the most successful in other parts of the world.

This gave me time to investigate thoroughly the next victim before we moved in on him.

Very few of those cases have been thoroughly investigated, let alone solved.