She wouldn't be the successful murderess she is if she hadn't the manners and appearance of a very gentle and gracious lady.
That's what gives her the pull she has when it comes to the verdict of a jury.

You ought to know, Major, that the old Bill Sykes sort of criminal, the brutalised-looking man with a huge jaw and a low forehead, is quite out of date now.

No one gets himself up in that style who means to go in for serious crime.

In a book published the other day there was a composite photograph made up of the faces of fifty or sixty criminals of the most extreme kind.

I assure you that the net result was an uncommonly good-looking man.