The answer is yes, they are operating as intended.
Certainly the healing lodge is a type of environment where the offender can better understand his or her culture. There are traditions and ceremonies. Normally the offenders have been working extensively with the elders. They're committed to following a healing path.
I can say that when I was in the Pacific region, we had a healing lodge, the Kwikwèxwelhp healing lodge, and an excellent relationship with the Sts'ailes community. Certainly when we went to the healing lodge and participated in the ceremonies and spoke to the offenders, we saw that these were offenders who were extremely committed to their path.
In terms of results, I don't know. Larry, do you have them?