Hi, the following code traverses rules and their conditions. However, I did not find a method to find conditions, that match over a certain field of a declared class. I know, that the rule API should be hidden for good reasons (Mark Proctor). for(Rule ruleDef : kb.getKnowledgePackages().iterator().next().getRules()) { for(RuleConditionElement rce : ((RuleImpl)ruleDef).getRule().getLhs().getChildren()) { for(Map.Entry<String, Declaration> entry : rce.getInnerDeclarations().entrySet()) { ?? Thanks, Marc -- View this message in context: http://drools.46999.n3.nabble.com/How-to-find-rules-that-use-special-fiel... Sent from the Drools: User forum mailing list archive at Nabble.com.