This is a case against distributors & manufacturers of opioids for, among other things, the violation of the Controlled Substances Act. Under the Controlled Substances Act, distributors are responsible for ensuring that opioids aren’t distributed and sold under suspicious circumstances, i.e. a closed loop system. The defendants are alleged to have not monitored the sale of drugs and did not report suspicious circumstances regarding their pharmacy customers. These distributors have been fined repeatedly for violating the CSA. We require an expert who is familiar with DEA diversion investigations to discuss the process and opine on how pharmacies attempt to avoid these investigations and continue to enable the opioid epidemic.