The reason I think Euthanasia and Assisted suicide should
not be legalised is precisely because the law as it stands is doing very well, thank you very much. Those who help loved ones to die actively or otherwise, with genuine motives, do not end up in jail or even in court under the current guidelines -- while those exceptional few who use "mercy killing" as a cloak to hide dangerous intentions are prosecuted. The balance, I think, is right at the moment.
I'm uncomfortable with the idea of assisted suicide for a number of reasons: life is too valuable, death is too permanent, most people don't have a choice, social pressures may be dangerous, etc. At one level we are already seeing similar affects in abortion. A 2004 study in the US (apologies for the lack of recent data, and that it's the US, but...) had the most-cited reasons for an abortion of:
74% Having a baby would dramatically change my life
73% Cannot afford a baby now
48% Do not want to be a single mother or having relationship problems
38% Have completed my childbearing
32% Not ready for a(nother) child
25% Do not want people to know I had sex or got pregnant
22% Do not feel mature enough to raise a(nother) child
14% Husband or partner wants me to have an abortion
13% Possible problems affecting the health of the fetus
12% Concerns about my health
6% Parents want me to have an abortion
1% Was a victim of rape
less than 0.5% Became pregnant as a result of incest
(source:
http://www.guttmacher.org/pubs/journals/3711005.pdf)
As can be seen, medical concerns come very low down on the list -- although this was clearly a multiple-choice essay. There were approximately 800,000 abortions in the US in 2004.
Regardless, anyway, of what you think about abortion, assisted suicide and euthanasia, opening the process up legally can lead to these processes being carried out for the lightest of reasons. I'm not calling for abortion to be outlawed again, although it does seem to me that there are better reasons for abortions than the top one given in this survey.
Legalising Euthanasia and Assisted Suicide could well lead to similar reasons being given. While they remain technically outlawed but unlikely to lead to prosecution if the reasons are legitimate, it provides the most stringent test possible on each case. That seems to me to ensure that those who assist suicides, or want to ease their sufferings at the end of life, can do so with confidence that they will not be prosecuted; while those who really had an ulterior motive or pressured someone into ending their life will be found out.
Legalising the process will in the long run lead to it escaping the attention of the law.