Such a view was made easy by the reliance of the police on informers of dubious character.

He's a man of dubious character, intelligence and morals.

He consorted with dubious characters who may actually have been spies.

For men, manicure has often been associated with slightly dubious characters.

That meant by now there were hundreds, possibly thousands, of dubious characters using it.

Why, when our budget is supposedly so tight, are we sending billions of dollars to be stolen by dubious characters?

"I have to tell you that there are some whom you would call dubious characters," he went on.

"His mother," the lawyer continued, "was a good-looking, rather foolish girl and she married a man of what I should call dubious character."

I consider the men he chose very dubious characters, sir.

Had anyone else played the role, this dubious character would probably have come off as clinically insane.