Are you looking to model the System and its projected and/or perceived outcomes (such as using the field of Systems Theory)? or looking at how those laws/rules/

Are you looking to model the System and its projected and/or perceived outcomes (such as using the field of Systems Theory)? or looking at how those laws/rules/policies are implemented in the bureaucracy? If you have a proposed law, the law is generally (or at least supposed to be) a framework, and the bureaucracy chooses how to interpret and implement that framework. If you want to model the bureaucracy (its inputs, outputs, efficiency, etc), take a look at BPM tools like Camunda, or JBOSS. Have done some of this related to local governments (https://github.com/StephenOTT/Gov-BPMN-Sub-Process-Departmental-Ownership https://github.com/StephenOTT/Gov-BPMN-Sub-Process-Departmen...). If you want to model the System (a modelled version of the impacts of the laws and how they could impact the other parts of 'society'), then take a look at Systems Theory and related apps. Mesa looks like a good starter tool for this.