guest: cpe, we are a research and action center. we understand that we can use data as a leverage for social change. same way attorneys might use the law for social change or other forms use funding, we use the data, and that is at the heart of a lot of our issues that go toward public safety. host: you spent some time with the philadelphia police, executive rector of the advisory commission there and philadelphia. how does the policing -- executive director for the advisory commission there in philadelphia. how are you working for police forces on issues of public safety? guest: we are working with some police forces, for sure. one of the things we pride ourselves on is the idea that we center in communities, not necessarily law enforcement agencies. we work with communities and law enforcement and minister polities to understand what issues are important to the community, important to law enforcement, and how those issues impact the relationship and impact equity in public safety and what solutions from the community can be utiliz