Synopsis
Preserve meaningful forensic options after sexual assault while prioritising clinical care, obtaining granular consent, preventing contamination, documenting objectively and maintaining an auditable chain of custody.
- Contact the SARC or forensic clinician early: relevant specimens, collection method and persistence depend on contact type, site, timing, washing, post-pubertal status and case details.
- Obtain separate consent for history, body and intimate examination, photographs, each sample, toxicology, storage and disclosure; refusal of one element does not cancel clinical care.
- Forensic specimens should be collected as soon as practicable, but maximum persistence evidence is not a guaranteed recovery window and exceptions require case-by-case discussion.
Key red flags
Strangulation symptoms, loss of consciousness, neurological change, voice change or difficulty breathing or swallowing requires urgent medical assessment.
Suspected drug-facilitated assault may have a short toxicology opportunity, so obtain specialist advice promptly while treating poisoning first.
A child or pre-pubertal person needs a specialist paediatric forensic and safeguarding pathway rather than an adult examination template.
An unsealed, unlabelled, wet or unattended specimen can lose evidential value and requires immediate advice and transparent documentation.
Repeated examination by multiple clinicians increases distress and contamination risk; coordinate clinical and forensic needs whenever circumstances allow.
Pressure from police, relatives or staff cannot substitute for the examinee’s decision-specific consent to any forensic component.
Unexpected amnesia or disproportionate intoxication warrants urgent forensic-toxicology advice because detectability varies by substance and specimen.
A glove, swab, package or surface contacting another sample can create transfer risk that must be contained and documented immediately.
Pre-pubertal anatomy, consent and safeguarding require specialist clinicians and different sampling guidance from post-pubertal pathways.
Improper sealing or missing possession details can prejudice exhibit integrity; preserve the item, record the defect and use the responsible local non-conformance and risk-assessment procedure rather than inventing provenance.
Reasoning priorities
Select relevant specimens and timing with a trained forensic practitioner from the clinical account and case circumstances.
The strategy is individual; standard maximum intervals do not guarantee recovery and should not be used as automatic exclusion thresholds.
Worked reasoning
An adult attends after changing clothes and is uncertain about police reporting but wants to know whether evidence remains possible.
- Treat urgent injury and prevention needs, explain that changing clothes may alter some evidence but does not remove care or every forensic option.
- Contact the SARC or forensic clinician promptly with consent to discuss relevant body, clothing and toxicology specimens.
- Obtain specific consent for each chosen component and use contamination controls, contemporaneous labels, seals and transfer records.
- Arrange safe follow-up and explain that findings cannot determine consent and that a decision about police reporting can remain separate where local pathways allow.