... on his "In the Light of the Law" blog. Highly recommended to anyone looking for a careful, knowledgeable guide to the various (and sometimes complex) canonical issues involved.
For helpful background information on the story, see this post on the Catholic World Report blog by managing editor, Cate Harmon.
UPDATE (Sept. 17, 2011): Dr. Peters has written another excellent post, "Some non-canonical reactions to Fr. Pavone’s latest statement", in which he states, "I write here, then, not as a canonist, but as a reasonably intelligent Catholic man, about the same age as Fr. Pavone, sharing the same Creed and sacraments and pope, familiar with pro-life work, who has worked with clergy and seminarians most of his adult life." Recommended!