Everyone needs a defence, or we'd be back hundreds of years when we were all at the whims of the local Lord of the Manor, travelling judges and local Grand Juries, (which were at least an improvement on what had went on before them).
Whether or not the brief will have expended him or herself entirely in the face of towering evidence is another thing.
As is the money grubbing of many lawyers in the Human Rights courts. It often resembles an outright racket, and a competition on how much legal aid can be fleeced from a public who look askance at their behaviour.
It is not as if there were no rights before we signed up to the EHCR, which we did after the war to encourage others. Rights have not been their gift, and are no better here for it's existence.
But everyone must have a defence. As they say, "It could be you."