I want to know the answer to the following question:
What type of law locked down the Catholic church's stance on celibacy in the priesthood?
All the background I'm provided with is that "However, during his pontificate Paul VI was considered generous in permitting bishops to grant laicization of priests who wanted to leave the sacerdotal state, a position which was drastically reversed by John Paul II in 1980 and cemented in the 1983 Canon Law that only the pope can in exceptional circumstances grant laicization.". Is that enough to answer the question?
Answer: yes