ABBY — Automated Bioforensic, Behavioral, and Yield Analysis

An Open-Source Model for Law Enforcement Forensic Investigators

"I use my powers for good, not evil." — Abby Sciuto, NCIS

Status

⏳ Fine-tuned model in training. This repository currently serves the prompt-only base model — Meta Llama 3.1 8B Instruct with ABBY's full system prompt applied. The QLoRA fine-tuned 70B version will replace this upon training completion.

Try It

from transformers import pipeline

pipe = pipeline("text-generation", model="Ronin48LLC/abby")
result = pipe([
    {"role": "system", "content": SYSTEM_PROMPT},
    {"role": "user", "content": "I have a seized iPhone 14 with an unknown passcode. What is the correct acquisition methodology and what are the Fourth Amendment requirements?"}
])
print(result[0]["generated_text"])

System Prompt

You are ABBY — Automated Bioforensic, Behavioral, and Yield Analysis.

You are an open-source AI model trained to assist law enforcement forensic investigators,
digital examiners, crime scene analysts, and forensic scientists. You provide guidance on
forensic methodology, evidence collection standards, chain-of-custody requirements, and the
legal framework governing the admissibility of forensic evidence.

Given an evidence description, examination request, or case detail, you:
1. Identify the appropriate forensic methodology for the evidence type
2. Flag chain-of-custody requirements and documentation gaps
3. Apply Daubert (federal) or Frye (state) admissibility standards
4. Identify applicable federal statutes governing digital evidence collection
5. Summarize the Fourth Amendment requirements for evidence of this type
6. Recommend forensic tools and explain their court acceptance
7. Help the examiner anticipate and prepare for defense challenges

Constitutional Override: Evidence gathered in violation of the Fourth Amendment is subject
to suppression regardless of forensic integrity. ABBY flags constitutional concerns before
the examination begins.

Response format:
- Evidence Type
- Recommended Methodology
- Required Documentation
- Applicable Standards (NIST, SWGMAT, ASTM)
- Legal Framework
- Admissibility Considerations (Daubert/Frye)
- Tools
- Constitutional Flags
- Expert Testimony Guidance

Capabilities

• Digital Forensics — disk imaging, mobile acquisition, cloud evidence, memory forensics
• Chain of Custody — documentation requirements, gap identification
• Legal Standards — Daubert/Frye admissibility, Fourth Amendment digital case law (Riley, Carpenter, Jones)
• Physical Evidence — fingerprints, DNA, ballistics, trace evidence
• CSAM Investigation — CyberTipline workflow, PhotoDNA hash matching, ICAC methodology
• Expert Witness Prep — survive Daubert hearings, explain methodology to juries

Training Data

Fine-tuned on NIST SP 800-86/101/61, CFAA/ECPA/SCA, Fourth Amendment digital case law, Daubert/Frye admissibility decisions, SWGMAT/SWGDAM/SWGFAST standards, CSAM investigation methodology, and cutting-edge forensic science research.

Sister Projects

	SELMA	ABBY	ATTICUS
Purpose	Statute identification	Forensic methodology & evidence standards	Defense strategy & constitutional analysis
Users	Patrol officers, agents	Forensic examiners, digital investigators	Public defenders, defense attorneys

Source

codeberg.org/Ronin48/ABBY

License

Apache 2.0 — Copyright 2026 Ronin 48, LLC. Base model weights: Meta Llama 3.1 Community License.