It seems to me that the main reason many of them become MPs is to feather their own nest.
And it seems to me, that MPs are regulated and disciplined by ... MPs.
There's not many political issues I feel strongly about, but I take great exception to MPs who help themselves to *my* money.
On the sordid details of the Miller case, I make no comment. But letting MPs be regulated by MPs is like letting the pigs run the farm.