According to statistics, it’s more than likely that you are not.

Does this mean you wouldn't like to save another’s life after your own death? If you believe, as I do, in the common good, I think it's safe to assume that most people would.

Research has repeatedly shown that as much as 90% of the public support the principle of organ donation. However, more than half of Scots are not on the register.

Tomorrow, MSPs in Scotland have a chance to do something about a flawed consent system that is effectively costing lives. More than 500 people are on the transplant waiting list in Scotland and three people die every day waiting.

Five years ago the Evening Times launched a bold and brave campaign calling on the SNP government to introduce an opt-out transplant system. Simply put, it means that individuals who want to donate organs after death are not required to sign up to the register. Anyone who is firmly opposed to organ donation can ‘opt out’ of the register.

The bill that will be voted on tomorrow, led by Labour MSP Anne McTaggart, is the fruition of that campaign.

But tomorrow, MSPs will simply be asked if they agree with the principle of opt-out.

The British Medical Association, a long time supporter of opt-out, and Ms McTaggart have stressed that the bill is not set in stone. Changes can be made, based on the guidance of experts. The transplant surgeons, the specialist nurses and the public, whose backing is essential.

A housing bill was passed at the Scottish Parliament after receiving no less than 155 amendments.

The SNP government has said it isn’t opposed to the principle of opt-out but that it is waiting for an evaluation of the Welsh opt-out system, which came into force in December. It has said that the evidence isn’t clear that opt-out - used in dozens of countries worldwide - leads to an increase in transplants.

However, the British Medical Association say it is “notoriously difficult” to assess the impact because of the problem of separating out the effects of opt-out from other factors that are known to affect donation rates.

They say it will never be possible to show a clear 'cause and effect.'

What we do know is that presumed consent legislation is 'associated' with an increase in organ donation rates. It is a leap of faith in many ways. It won't work alone, but it's another tool in the armoury for the government and the medics who are working hard to reduce a deficit in donors that has left more than 500 Scots on death row.