Peters own lawyer colleagues take issue with his assertions and advise caution.
"My colleage, Dr. Ed Peters, provides some good insights, but I can see that he’s struggling with this issue. I would advise those who have difficulty with Pope Francis’s teaching on the death penalty to follow the guidance of the CDF given in Donum Veritatis, 27-31. Some of Dr. Peters’ comments about the ordinary papal magisterium need clarification because they could be interpreted as challenging the universal ordinary teaching authority of the Roman Pontiff, which is affirmed by three ecumenical councils: Florence (D-H, 1307); Vatican I (D-H, 3064), and Vatican II (Lumen Gentium, 22 and 25). It’s also not clear that Pope Francis’s position on the death penalty is devoid of episcopal support. The Synod of Bishops in 2015 endorsed proposition 64, which states that the Church “firmly rejects the death penalty.” In Amoris Laetitia, 83, Pope Francis simply confirms this position of the Synod bishops.
I give Dr. Peters credit for trying to show some of the canonical implications of the revision of CCC 2267 on the death penalty. From an ecclesiological perspective, however, I think some of his statements need clarification." - Robert Fastiggi
Actually, Robert Fastiggi is an American who is a theologian. I come across his articles in theological journals from time to time. If he is a civil lawyer and/or a canon lawyer as well, I do not know. What matters here is his credential as a theologian because his remarks are ultimately ecclesiological.
In any event, Dr. Peters is the American canonist who made what can only be termed remarkable assertions concerning obligations under canon law that married permanent deacons had assumed. That episode was so far beyond the pale that it caused me not to bother reading anything he authored thereafter. It was absolutely credibility destroying.
When a canonist writes that he is correct and that the Holy Father, the dicasteries of the Holy See, and the Bishops exercising governance in their dioceses around the world on so fundamental an issue are in error…well that person should be regarded as being in serious need of help.
Actually, having followed the topic of capital punishment for years, I have often remarked how the thoughts of the Bishops, most especially in the United States, have become ever clearer as they have reflected on this matter with and under the head of the College of Bishops. In no small part, this was due to Pope Saint John Paul II who led the College on this issue.
Archbishop Chaput, for example, who has been cited in this thread, has become a very vocal voice in the United States for the complete abolition of the death penalty in recent years.
The Bishops of the United States are quite vocal in expressing the Church’s teaching that the death penalty is not to be employed. In my part of the world, the elimination of the death penalty is universally acknowledged as good.
It is astonishing that Dr. Peters would assert that the Bishops are not with the Pope on this issue. They most assuredly are, in fact.