use of the Supremacy clause in the U.S. Constitution, federal Law and federal agent policies, they conduct the investigation, the primary investigation, the lead investigation when a federal agent shoots someone within the City of Houston or anywhere in U.S. for that matter and based on the way they typically handle their investigations, local authorities including the local police department are essentially cut out of the primary investigation. Federal agencies will control the scene. They'll control the evidence. They will take witness statements. They will collect the evidence and will share what they want to share with local authorities and so it becomes quite difficult for local authorities to conduct a decent investigation,  said Ramirez.