Explore the intricacies of neutrino detection in this comprehensive lecture, the second in a series on neutrino detectors. Delve into the specialized techniques and equipment used to observe these elusive particles that interact only through the weak force. Learn about the challenges of detecting neutrinos due to their extremely small cross-section and how scientists overcome these obstacles. Discover the evolution of neutrino experiments from single-purpose to multi-purpose research facilities and their role in addressing key questions in particle physics. Gain insights into the importance of neutrino detectors in studying phenomena beyond the Standard Model, including neutrino oscillations, mass ordering, and potential CP violation. Understand how these detectors contribute to our understanding of fundamental physics and the universe at large.