- Sacco and Vanzetti Case
- Saliva
- Sampson, William C
- Sarin Gas
- Satellites, Non-Governmental High Resolution
- Scanning Electron Microscopy
- Scanning Technologies
- Sculpting
- Secret Writing
- Secretor
- Semen and Sperm
- September 11, 2001, Terrorist Attacks (Forensic Investigations Of)
- Sequencing
- Serial Killers
- Serology
- Serum
- Sex Determination
- Sexual Dimorphism
- Sexual Predation Characteristics
- Shaken Baby Syndrome
- Shoeprints
- Silencers
- Simpson (O. J.) Murder Trial
- Sinus Print
- Siracusa, Vittorio
- Skeletal Analysis
- Skeletal System Overview (Morphology)
- Skull
- Smallpox
- Smith, Ron
