The SHIELD PCP initiative aims to drive innovation by empowering buyers to actively influence the development of cost-effective solutions tailored to their unique requirements. The overarching aim is to equip security stakeholders with cutting-edge technology procured through innovative processes, offering solutions that enable seamless coordination and cooperation among all stakeholders, especially law enforcement agencies (LEAs). Building on the achievements of its predecessor, SHIEL4CROWD, the SHIELD PCP project adopts a top-down approach. This method consolidates widely agreed-upon scenarios to address critical security challenges, providing a detailed identification of innovation needs at both the process and technology levels. This top-down approach enabled the alignment of stakeholders, from security forces to public authorities, ensuring innovative solutions meet shared needs for public space protection. SHIELD4CROWD also developed a roadmap of innovations addressing operational and technical challenges while considering regulatory and economic factors. SHIELD PCP continues this work to enhance collaboration and improve public space security. The project follows a phased Pre-Commercial Procurement (PCP) process, which includes: Preparatory Phase: Finalizing the tendering documentation developed during SHIEL4CROWD; Phase 1: Solution Design ;Phase 2: Prototype Development; and Phase 3: Operational Validation, conducted across three pilot sites in France, Spain, and Slovakia. A consortium of 10 partners from 6 EU countries, including 3 Ministries of Interior and 1 public transport operators as Public Buyers and 1 end-user, is collaborating on this project. Many other end-users will also be involved through the User Observatory Group (UOG).