My understanding on SB91 was that it came out of recommendations made by the Criminal Justice Commission.
http://www.ajc.state.ak.us/alaska-criminal-justice-commission
They already have recommendations for admendments to SB91
http://www.ajc.state.ak.us/alaska-criminal-justice-commission/commission-recommendations
Another good source on reports and studies is on the Alaska Judicial Council's web page.
http://www.ajc.state.ak.us/judicial-council-publications
Lots of information available from these two sources.