He was, I think, the most effective witness in the case.

But whether Ms. Nussbaum will prove an effective witness against her former lover remains unclear.

In other words, "a very effective witness."

To be effective witnesses of God's love society today the tasks facing Religious are enormous.

Bentley herself was not an effective witness.

Spirit baptism brings empowerment to live an overcoming Christian life and to be an effective witness.

The chief problem for prosecutors was that the patient made a very effective witness for the doctor - even posthumously.

We had very effective witnesses on our side.

Before the Senators, Mardian was an effective witness in defense of his actions.

The new officers say their training has helped them to draft more complete reports and to be more effective witnesses in court.