This module takes the learner through the necessary basic science and criminalistics for forensic science, comprising the fundamentals of biology, chemistry, and physics, and their integration for scientific crime detection and analysis. The topics covered include biological fluids, components and structure of DNA, chromosomes and cell cycle, human and animal genomes, mendelian genetics, mutations and alleles, population genetics, environmental forensic samples, alcohol, inks, and paints, explosives and gunshot residues, fuels and fire debris, heat from arson, melting points of materials and flammability, glass, impact and breakages of glass, alterations, obliterations and erasures, effect of gravity on blood pattern, parts and mechanics of firearms and ammunitions, pressure, handwriting, and document examination, porousness effect on inks and paints, identity of hairs and fibers, and fingerprints. All topics are covered with regards to use of scientific instruments, qualitative and quantitative analyses, method validation, probability and statistical tests, and quality control and quality assurance.