Complex sentence: The BICI report described a "culture of complete impunity" by the lack of accountability within the security forces that was supported by judges and public officials of "implicitly condoning" misbehavior.
Split into simpler sentences: The BICI report described a "culture of complete impunity" within the security forces attributable to the lack of accountability. The report accused judges and public officials of "implicitly condoning" misbehavior.