Yes, and legal aid costs are also an issue. Further, as you say, the fact that a person may succeed in presenting this evidence with the support of experts, and everything else, does not affect the process. I imagine that the process will remain long and difficult in most cases. Perhaps the reverse onus is a way to shorten the process, but I'm not sure it will produce the desired results.
On November 14th, 2007. See this statement in context.