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What are non-ordained lay person’s powers?
Seeing that this is essentially quite a broad topic, this answer is being made into a community wiki response answer.
Everyone who desires may add to the list. No one will receive points to this, not even myself.
Lay persons may have the following ordinary privileges or positions within the Catholic Church:
Lay persons in modern times fulfill various positions due to circumstances that present themselves in our modern times, with ecclesiastical approval, such as:
In times of necessity or in a genuine emergency or in extreme circumstances, a lay person may also do the following: