Welcome to Part 2 of our 'Python for Forensic Chemists' tutorial series! In this video, we delve into the transformative effects of Standard Normal Variate (SNV) preprocessing on reducing signal scatter in near-infrared (NIR) spectroscopy. We'll guide you through a step-by-step process of applying SNV, followed by an in-depth visualization using Principal Component Analysis (PCA). Whether you're a budding forensic chemist or an experienced professional looking to refine your signal processing skills, this tutorial offers valuable insights and practical applications. Stay tuned as we unlock the full potential of SNV in NIR signal analysis with Python!