It was the type of game that a clever crook would play in order to save an accomplice.

I've heard Dad say that there is no such thing as a clever crook.

More likely, they have been modified by clever crooks to function as pirate devices and receive pay programs free.

Just the way a clever crook would.

Suppose some clever crook employed a tool to do those killings?

No, he must have been some clever crook who knew how to work the combination.

So you chose a group of clever crooks.

But these were clever crooks; in their action, The Shadow saw keen scheming.

Even a pair of clever crooks couldn't have faked an incoming call.

That's one of the ways we nab clever crooks.