In other words, she's a retard. Possibly, I wanted to know your views
Death penalty is what I call a petty issue. Having the death penalty doesn't significantly improve the country in any way, and not having it doesn't improve the country significantly. The greatest advantage of not having it is that court errors don't turn deadly. That is desirable, but if it's used rarely enough doesn't amount to significantly improving the country (life in prison for something you didn't do still destroys your life, it just doesn't end it).
It is however hugely controversial and it would require lots of energy to push through. This energy could be spent better in so many ways it's a real waste of reintroducing it. Abolishing it did improve the country somewhat and was far less inherently controversial, so it could be worth the effort. Reintroducing it is just not worth it unless there is a clear reason to do so - and there isn't one.
McHrozni
That's your, and my, view.
Theresa May OTOH is a firm advocate of the death penalty and thinks it's important and effective (despite all evidence to the contrary)