AI for criminal defense and prosecution
Ultramarine Work reads the offense reports, lab findings, body camera and jail call transcripts in the case folder, then prepares the discovery inventory, elements matrix, chronology, Brady demand or sentencing memo you asked for.
Motion-to-suppress-Teague.docxExampleDefendant’s Motion to Suppress Evidence and Request for a Franks Hearing
I. Introduction
On April 12, 2026, officers searched Mr. Teague’s apartment at 418 Sable Street under a warrant that rested on a single confidential informant. The affidavit calls the informant reliable but does not tell the magistrate that two of the informant’s three earlier tips, in January and February, led to searches that found nothing. (Ex. C, Supp. Rpts. 26-0117, 26-0209.)
II. The omissions were material
Franks v. Delaware, 438 U.S. 154 (1978), requires a hearing when a defendant makes a substantial preliminary showing that the affiant, knowingly and intentionally or with reckless disregard for the truth, included a false statement necessary to the finding of probable cause. The courts of appeals have extended that test to material omissions. With the two failed tips restored, the affidavit gives no basis to credit the informant’s veracity under Illinois v. Gates, 462 U.S. 213 (1983).
CheckedExhibit C cites check to Bates 000412–000419. Add circuit authority on omissions before filing.
How it works
- 1
Assemble the case folder
The folder holds the offense reports and supplements, warrant affidavits, lab findings, body camera and jail call transcripts, every production kept separate as it arrived, the rap sheet, the standing orders and the protective order.
- 2
Name the piece you need
What comes back is the production inventory, the elements matrix, the chronology, the guideline worksheet or the draft motion. Every finding carries its Bates number, page or transcript line, and it lists what it could not find.
- 3
Check it and decide
Read the cited pages, check the quoted lines against the recording, and recompute the guideline math yourself. It drafts and counts, and you decide what to charge, how to advise the client and what gets filed.
Ask it for
“Go through the second production, Bates 000111 to 000764, list what is missing under the Rule 16 categories, and draft the Brady demand.”
Brady-demand-production-2.docx“Build an elements-to-evidence matrix for every count of the indictment and flag each element no witness or exhibit supports.”
Elements-matrix.xlsx“Run the body camera transcript against Officer Delgado’s September 14 offense report and chart every statement the video does not support.”
Report-vs-bodycam.xlsx“Draft the motion to suppress the April 12 search of the Sable Street apartment, based on a warrant affidavit that omits the informant’s two failed prior tips.”
Motion-to-suppress-search.docx“Compare the PSR’s calculation for the fraud counts to the account statements and draft the Rule 32 objections to the disputed loss and enhancements.”
PSR-objections.docx“Pull the jail calls where Kimura’s name comes up and draft the cross-examination outline, quoting each call by its transcript line.”
Jail-call-crossex-outline.docx
Inside the Criminal Law mode
Criminal case assessment
Puts each count’s elements beside the evidence so the gaps show before you pick a charge or a plea, and lists the Brady and Giglio material in the production.
Sentencing memoranda
Rebuilds worksheets A through D from the PSR and tests each enhancement and criminal history point against the record, then drafts the mitigation narrative.
Pleadings and motions
Drafts suppression, discovery and bail motions with notices, certificates of service and proposed orders, checked against the local rules in the folder.
Court filing and docketing
Counts response dates under the federal Rule 45 or the state counting rules, and computes the 70-day Speedy Trial Act window from the docket entries.
Litigation support
Builds the chronology and witness summaries, then quotes the police report beside the body camera text where the two accounts differ.
Trial preparation and exhibits
Pulls the trial notebook together and drafts the motions in limine that keep out the priors. The verdict forms follow the circuit’s pattern instructions.
Investigation plan and findings report
Writes the interview outline with the Garrity advisement an officer under internal investigation must get, plus a memo of each interview for the file.
Legal memos and briefs
The record becomes a brief or advisory memo, with point headings, the standard of review and a statement of facts that cites the discovery alone.
Legal authority verification
It looks up every case, rule and statute it relies on and shows each quotation against its source. Anything it could not confirm is flagged, not guessed.
- Office skills
- Excel, Word, PowerPoint, PDF
- Tools
- Read, edit and write files, Search files, Run code, Search and read the web, View images
- Connectors
- SharePoint, Google Drive, Gmail, and additional custom connectors
- House style
- Your fonts, layouts and rules, on every file
Who it’s for
Prosecutors, public defenders and private criminal defense lawyers at every level, and their paralegals and investigators.
Questions
Will it invent case citations?
It cites only what it can trace, and the citation check tells you which citations it could not confirm. No tool can vouch for its own output, and lawyers who filed unverified AI citations have been fined, struck and referred to discipline. Check every authority before anything is filed.
Where does the case material actually go?
Ultramarine Work changes files only in the project’s folder. When a request needs it, it can read files elsewhere on your computer, never passwords, keys or app data, and you can turn that off in settings. The model runs on Paper Instruments’ servers, so the content it works on is sent there to be processed. Paper Instruments is SOC 2 Type II, and our security and compliance details are on our compliance page.
Our DA’s office holds CJIS data. Can we use it?
Not until the office approves it. Criminal history and investigative records are criminal justice information under the CJIS Security Policy, so both the tool and the deployment have to be approved by the agency that holds NCIC access. That decision belongs to your CIO and compliance team. Start with our compliance page, and keep the case files out until they sign off.
The protective order bars discovery from AI tools. Now what?
Follow the order, and read it before any protected file goes near the tool. Some courts bar protected material from any AI tool whose provider has not agreed in writing to be bound by the order, and Ultramarine Work sends content to Paper Instruments’ servers to process. Whether a given tool fits the order is a judgment for your side to make, and sometimes the court’s.
Does it decide whether to accept the plea offer?
No, it lays out the elements, the evidence behind each one, the guideline exposure and the gaps. The advice and the decision stay where the law puts them, with you and your client.
Can it review the body camera video and jail calls?
It reads the transcript files you put in the case folder rather than the recordings themselves, and it does not transcribe them. Since a summary can drop the exculpatory line, check every quoted passage against the recording before the hearing. It views image files such as scans and photos, and it reads email through the Gmail connector when you turn it on.