I also cannot help but worry not only about lab or collection mistakes, but
about deliberate "mistakes." Unless a great number of people of diverse
backgrounds, expertise and interests (especially personal or philosophical
stakes in the test results) follow the chain from collection to
Pierre writes:
"I am not sure I understand why, with DNA technology, it can be that
Y'X."
For essentially the reasons Chris notes. Take the simplest case.
You think no innocents ever get on death row. DNA evidence shows that
this view is false. You now know that some innocents get on
