Do the Aghori get permission from the family of the dead before they eat them? And what implication does that imply if they lack consent?

I’m a recent white convert to Kaula Shaktism and I’m fascinated by this aspect of Tantrism. The Aghori. Very similar to the philosopher Diogenes the Cynic. Very much the ideal of Friedrich Nietzsche in pursuing one’s will to power.