- Paint Analysis
- Palenik, Skip
- Palmbach, Timothy
- Palynology
- Parasitology
- Paternity Evidence
- Pathogen Genomic Sequencing
- Pathogen Transmission
- Pathogens
- Pathology
- Pathology Careers
- Pattern Evidence
- PCR (Polymerase Chain Reaction)
- Performance-enhancing Drugs
- PERK (Physical Evidence Recovery Kit)
- Perspective Analysis
- Peruvian Ice Maiden
- Petechial Hemorrhage
- Photo Alteration
- Photogrammetry
- Photographic Resolution
- Photography
- Physical Evidence
- Physiology
- Point-by-point Analysis
- Poison and Antidote Actions
- Polarized Light Microscopy
- Pollen and Pollen Rain
- Polygraph, Case Histories
- Polygraphs
