This report quantifies dark-web drug trade risk and the performance of monitoring tools and law-enforcement collaboration strategies across Europe and Portugal (2025–2030). We size the illicit market and the counter-monitoring spend, modeling impacts on listing detection, vendor disruption, crypto tracing yields, takedown cycle time, and cross-border case throughput. We benchmark tool accuracy (precision/recall), multilingual coverage, and mixer/chain-hop analytics. By 2030, expanded OSINT+blockchain forensics and joint-operations playbooks cut active vendors, accelerate seizures, and raise prosecution rates, delivering measurable ROI via overdose avoidance, healthcare savings, and reduced investigative hours per case.