A RID number is most often a Regional Identifier, a unique ID assigned by a multi-agency law enforcement network that ties a person’s arrest, booking, warrant, and court records together across the agencies that share a regional database. The abbreviation has no single universal meaning, though, and the number on your document may actually be a court docket number, a jury participant number, or an entirely different identifier depending on who issued the paperwork. The fastest way to know which one you have is to look at who sent it.
Regional Identifier in Law Enforcement
In criminal justice information systems, RID stands for Regional Identifier. It’s a unique number assigned to an individual by a multi-agency law enforcement network, and it links arrest records, warrants, protection orders, court cases, jail records, criminal histories, and booking photos across every agency that shares that regional database. One lookup pulls the full profile.
If you were arrested, booked, or processed through a county or regional system, your RID will usually appear on booking paperwork, jail release documents, or a background check printout generated through that regional system. Need it for a court appearance or an attorney request? Call the county sheriff’s office or the agency that processed the arrest. They can look it up with your name and date of birth.
When the Document Came from a Court
If your paperwork came from a court rather than a law enforcement agency, the number is almost certainly a case number or docket number, not a RID. Federal courts assign a docket number when a case is filed, and it has to appear on every document submitted afterward. A federal docket number typically includes a two-digit year, a case type abbreviation like “Civ.” or “Cr.”, a sequential case number, and the assigned judge’s initials.1United States District Court for the Southern District of New York. What Is a Docket Number
State courts use their own formats, but the principle holds: one unique identifier tracks everything in a single case. Look in the upper right corner of any filing, on the first page of a complaint or summons, or in the header of an order or motion. When someone asks for your “case ID” or “record number” in a court context, that’s the number they want.
Jury Summons: It’s a Participant Number, Not a RID
People who get a federal jury summons sometimes search for “RID number” because the summons links to a court website with “rid” in the URL. In those cases “rid” is the court’s own abbreviation, usually for the District of Rhode Island or a similar district code, and it has nothing to do with the number printed on your summons.
The number you actually need from a federal jury summons is your participant number. It’s nine digits, printed just above Step 1, near your name and address.2United States District Court for the District of Idaho. Finding Your Juror Participant Number You use it to log in to the eJuror online portal, check the status of an excuse or postponement request, and label any documents you submit back to the court.
Lost the summons? Call the jury clerk’s office at the issuing court. The number is on the summons itself, but you can also find it by searching the court’s name plus “jury service.”
Other Federal Uses That Get Confused with RID
A handful of federal agencies use the letters “RID” or something close to it for unrelated purposes, and documents from those systems sometimes send people searching for the wrong term.
The FAA uses Remote Identification (RID) as a compliance framework for drones, requiring certain aircraft to broadcast identification information during flight. The Department of Defense uses a Visual Information Record Identification Number, or VIRIN, to catalog photos, videos, and other visual media in its central records system.3eCFR. 32 CFR Part 811 – Release, Dissemination, and Sale of Visual Information If your document came from a military or aviation context, one of those is probably what you’re looking at.
Immigration paperwork doesn’t use a RID at all. USCIS assigns a 13-character receipt number to every application or petition it receives, and that’s what you use to track case status online.4USCIS. Receipt Number If someone told you to find your “RID” on immigration correspondence, they almost certainly meant the receipt number.
How to Identify the Number on Your Document
Match the document to the system that produced it:
- Booking or jail paperwork: the number is likely a Regional Identifier. Contact the sheriff’s office or booking facility to confirm.
- Court filing, summons, or legal notice: the number is a case or docket number. Check the top right corner of the first page or the document header.
- Federal jury summons: the nine-digit number near your name is your participant number. Use it for eJuror or when responding by phone.
- Immigration correspondence: the 13-character alphanumeric code is your USCIS receipt number.
- Military or DOD media records: the identifier is a VIRIN.
- FAA drone paperwork: “RID” refers to Remote Identification, a compliance framework rather than an ID assigned to you.
When you’re not sure, call the issuing office. The agency’s contact information is almost always printed on the document, and staff can tell you exactly which number they need and what they call it.