My general view is no to the death penalty under any circumstances, I've yet to hear an argument that is even vaguely convincing for me to think it's a good idea on the basis of benefitting society. If people are in favour of the death penalty because they think the state should be executing offenders for certain crimes then naturally that is their choice and I'm not about to spend time arguing over what is a different moral choice and worldview to mine. However where the argument is that it has some sort of benefit to society which you can measure e.g. deterrent effect, costs, reduction in crime etc the evidence seems clear that it doesn't work.
I think we probably just need harsher prison sentences here and the prisons themselves need to be more harsh; at the least, UK prisons are perceived to be quite soft (not that I intend on finding out).
I don't know about corporal punishment, but humiliation can be/was a good deterrent. Being in the stocks was very embarrassing!
If you want harsher sentences because you want to see offenders suffer and you would like to see the state administer vengeance for transgressions then that's a worldview and that's fine (I disagree with it but won't argue on that basis since it's a personal preference sort of thing). However it is notable that the countries with the lowest rates of recidivism are those who focus on rehabilitation and continue to treat prisoners as people.
The basic point being that harsher sentences don't translate into much of a deterrent or at least the available evidence doesn't seem to support it unless this has changed wildly in the past couple of years. Embarrassing or dehumanising people simply isn't as effective as some would like to believe.
One of the major problems with aiming for a rehabilitation based approach is public perception because you get the stories of "soft on crime, soft on criminals" which riles up people. It's not without cost and it won't work for everyone but it is more effective than trying to be more punitive, it might seem illogical because "it's common sense, you'd not do it if you were going to suffer more when caught" but the evidence appears to show (and show convincingly) that people reoffend less after a well implemented plan for rehabilitation is followed. Rehabilitation is not universally successful so let's address that point straight off, there will always be some people who any system doesn't work for.
For those that say the death penalty is not a deterrent can they explain why drug dealers and users are prostrating themselves at the feet of authority asking for clemency, since President Duterte of the Philippine made the offences punishable by death? So successful has the deterrent been Indonesia are planning a similar Draconian deterrent and China voice approval.
When you say prostrating themselves at the feet of authority - is this before or after they are caught? It's perfectly possible they've got limited faith in the fairness of the judicial system.
Are you really holding up those countries as models for a judicial system that you'd like the UK to emulate? If you are then again that's fine as a worldview but given the amount of human rights abuses in those countries I think we'll have to agree to disagree that there's anything to admire there.
I'd also like to see the death penalty reinstated for treason, especially when we have so many pseudo British citizens enacting atrocities against the State and its people.
The talk of it costing more to euthanase someone being higher than keeping them incarcerated for life is purely down to the legal system in the US allowing countless ongoing appeals. Luckily we in Great Britain are slowly getting a grip on legal aid abuse, much to the discombobulation of the more Left leaning members of the legal profession who have grown fat on its once unfettered distribution.
The argument of cost is always going to be an interesting one - if you want a system with suitable safeguards then that costs money and takes time. If you don't want safeguards then life is cheap and there's very little to admire about that viewpoint as far as I'm concerned.