The endless endless running that is required to prepare for a marathon provides plenty of time to think, ideally about anything not related to jogging.
Over eight miles of painful terrain today, I was pre-occupied with DNA evidence, which seems to be the cornerstone of every major crime trial today.
And whenever there is a trial, there seems to be an expert saying that the chances of the recovered DNA having come from anyone other than the accused, are about one billion to one. Fair enough; bang them up for life.
But hang on a minute; there are more than six billion people on the planet so statistically the chances of having the right man are slightly less than one in six.
And if you are a mass murder living in India, then there is every likelihood that someone with matching DNA lives in the same country as you. In fact if you are a mass murderer living in Bhopal there is a good chance that someone with matching DNA lives less than 600 miles away.
That’s almost an alibi.
I think my brain is being over-jogged.
