Two high-profile Delaware lawyers on June 2 made public a preliminary independent review of the security conditions at James T. Vaughn Correctional Center, finding that chronic understaffing, a lack of communication and inadequate technology likely contributed to a deadly inmate takeover of the prison’s C Building earlier this year.

The 54-page independent report detailed breakdowns in Department of Correction policies and procedures in the run-up to the nearly 18-hour siege on Feb. 1, which left one correctional officer dead and others injured. Among its major findings, the report concluded that prison rules were not consistently enforced and inmates were left idle without programs to incentivize good behavior.