DAN Diving Incident Reports are available: https://www.diversalertnetwork.org/diving-incidents/
BSAC Diving Incident Reports are available at: http://www.bsac.com/page.asp?section=1038§ionTitle=Annual+Diving+Incident+Report
Australian Diving Doctor Carl Edmonds and his co-authors have made the 3rd Edition of "Diving Medicine for Scuba Divers" available as a free pdf download on the web. It can be downloaded from here.
University of Michigan Diver Education Series by Lee H. Somers, Ph.D. These short papers touch on diving safety issues that are just as relevant today as they were when they were written in the early 1990s. These reports and others are available from the National Sea Grant Library:
Recommendations for rescue of a submerged unresponsive compressed-gas diver. Mitchell SJ, Bennett MH, Bird N, Doolette DJ, Hobbs GW, Kay E, Moon RE, Neuman TS, Vann RD, Walker R, Wyatt HA. Undersea Hyperb Med. 2012 Nov-Dec;39(6):1099-108.
The NOAA Dive Accident Managment Plan Template can be used as a starting point for developing your Site Specific Emergency Action Plan: http://www.ndc.noaa.gov/pdfs/DAMP_Template.pdf