Dr Kavanagh may be frightened by Mr Potter's understanding of mental health, but Dr Kavangh's assumptions frightens me. He maintains that while post-natal depression is a "serious mental illness" (no doubt), provocation is about "transferring responsibility to the victim" and there is a "clear distinction between such cases".
In other words the former is medically "real" (has an organic basis in brain chemistry) while the latter is not.
If a woman kills her child or her husband then, from a legal perspective, her mental state at the time will determine her degree of culpability.
Why should the medical fraternity have a stranglehold on the legal system's understanding of mental processes? Surely a broader view than genes and hormones is essential to just and compassionate decision-making.