Is there any situation whereby a Pinchas-style execution would be justified nowadays?
I am particularly interested in whether a 'zealous act' against a public sexually problematic sin is possible in theory nowadays. If so how would one judge alone during this moment (as did Pinchas). How would one know how and when to act?
(Major disclaimer: this question is not meant to be provocative and NO ONE should take the law into their own hands!)