Please note: This is a Sole Source Notification. Specifications include, but are not limited to: Consulting services to continue assisting the agency in acquiring and deploying Contraband Cell Phone Interdiction Systems. MITRE is currently working with the agency to acquire and validate deployment of a Next-Generation Managed Access System, described as “MAS Evolved” in the Contraband Cell Phone Task Force Testbed Report available at https://api.ctia.org/wp-content/uploads/2019/04/Contraband-Phone-Task-Force-Status-Report-Combined.pdf. The agency intends to expand on this work to pursue a solicitation for a new type of Contraband Interdiction System (CIS) that can become certified by the Federal Communications Commission (FCC) and allow submission of disabling requests to Mobile Network Operators (MNOs) for contraband phones observed in correctional facilities, as described below. These consulting services include assistance in solution design, RFP development, proposal evaluation, and post deployment system validation for such a system.