Forensic Botany
Definition
The application of plant science, including morphology, anatomy, palynology, and molecular biology, to criminal and civil legal proceedings.
- Disciplines drawn on
- Morphology, anatomy, palynology, molecular biology
- Subject matter
- Plant material as legal evidence
- Application
- Criminal and civil legal proceedings
- Related field
- Overlaps with forensic palynology for pollen evidence
Common questions
How does forensic botany help place a suspect or object at a scene when plant evidence is involved?+
Plant material such as leaves, seeds, wood fragments or pollen adhering to clothing, vehicles or tools can be matched to specific plant species and, in some cases, to a narrow local population or growth stage, linking a person or item to a particular location or time of year.
What can plant evidence reveal about time since death or time since a disturbance occurred, that other evidence cannot?+
Plant growth stages, seasonal flowering and germination timing, and the extent of new growth over disturbed soil provide independent time markers, since these biological processes proceed at rates tied to season and local conditions, corroborating or challenging other time-of-event estimates.
Why is molecular biology increasingly used alongside traditional morphological identification in forensic botany?+
Morphological identification can be difficult or impossible on fragmented, degraded or immature plant material, whereas DNA barcoding and genetic analysis can identify species, and in some cases individual plants, from small or damaged samples that lack diagnostic visible features.
Related terms
- Dendrochronology
- The science of dating by tree-ring sequences. Each annual ring encodes the growing conditions of that year; matching ring patterns to a...
- Locard Exchange Principle
- The forensic principle that contact between two surfaces transfers material in both directions. Plant material, pollen, seeds, and leaf fragments all transfer...
- Palynology
- The study of pollen grains and spores. In forensic work it links persons, objects, or remains to specific geographic locations through the...
- Post-Mortem Interval (PMI)
- The time elapsed between death and discovery or examination of remains. PMI estimation draws on multiple disciplines: soft tissue decomposition stage, insect...
- Provenance
- The documented origin of a media file: the device that captured it, the time and location of capture, the chain of custody...