Pg 24:
"We were told by multiple Intelligence Analysts that they received guidance to only state the facts and not to conduct analysis, report conclusions, and make recommendations in the Significant Source Review Panel validation reports. For example, one Intelligence Analyst told us that he was permitted to recommend a CHS receive a polygraph or operational test to the handling agent by phone but not permitted to document the recommendation in the CHS’s validation report. Additionally, multiple FBI officials told us that they believe that field offices do not want negative information documented in a CHS file due to criminal discovery concerns and concerns about the CHS’s ability to testify. For example, one FBI official told us that some U.S. Attorney’s offices will not use a CHS at trial if there is negative documentation in the CHS’s file."
Read: Agents buried negative information about their CI's so it would not be discovered during trial. Or read differently: Brady disclosure rules were subverted, ala Senator Stevens.