The main types of police reports are incident reports, traffic accident reports, arrest reports, and supplemental reports. Each one documents a different kind of event and captures different information, which is why asking for “a police report” without knowing the type can slow things down at the records window. Knowing which report applies to your situation also tells you what will be in it, who can see it, and what you can do with it.
Incident Reports
The incident report is the default record and the one most people mean when they say “police report.” It covers everything from theft and vandalism to noise complaints and welfare checks. When someone calls the police or an officer observes something worth documenting, this is the record that gets created. It captures the basics: who was involved, where it happened, what the officer saw, and what the people on scene said.
Incident reports treat the event as a snapshot. The officer documents the physical scene, identifies the people involved, and records their statements. No arrest needs to happen for an incident report to exist. If someone breaks into your car and you call the police, the responding officer creates an incident report even though the suspect is long gone. That document becomes your proof that the crime occurred, which is often the first thing an insurance company or prosecutor asks for.
Not every call for service generates a formal incident report. Many departments use a separate, shorter call log or service record for routine matters that don’t involve a crime or significant property loss. If you need documentation of a specific event, ask the responding officer to confirm that a numbered incident report will be filed.
Traffic Accident Reports
Collisions involving motor vehicles get their own reporting format because the data needs are different. A traffic accident report emphasizes spatial and mechanical details: diagrams showing the point of impact and where each vehicle came to rest, whether the road was wet, whether traffic signals were working, and whether there were skid marks. The goal is to preserve enough physical detail that an engineer or attorney could reconstruct the crash months later.
These reports also capture vehicle-specific information, including the 17-character Vehicle Identification Number (VIN) required by federal regulation on every motor vehicle sold in the United States. Officers record each driver’s license and insurance information as well, since most states require drivers involved in an accident to exchange those details at the scene.
States set their own dollar thresholds for when an accident must be reported to police. These thresholds range widely, from any amount of property damage in some states to $3,000 or more in others. When injuries or fatalities are involved, reporting is mandatory everywhere regardless of property damage. If your accident falls below the reporting threshold and no officer responds, you can usually file a self-reported crash form with the state department of motor vehicles or the local police department within a set window, often 10 days.
Arrest Reports
An arrest report is created when an officer takes someone into physical custody. This is a different document from the incident report that may have brought the officer to the scene in the first place. The arrest report focuses on the legal justification for the arrest: what the officer observed, what evidence existed, and why those facts added up to probable cause. The Fourth Amendment requires that no one be seized without probable cause, and the arrest report is where the officer puts that reasoning on paper.1Constitution Annotated. Amdt4.5.3 Probable Cause Requirement
The report lists the charges, records the time of booking, and documents whether force was used during the arrest or whether weapons were present. It becomes the bridge between the street encounter and the court system. Prosecutors rely on it when deciding whether to file charges, and defense attorneys scrutinize it for constitutional problems.
Booking information and arrest records are generally more accessible to the public than investigative files. Many jurisdictions are required to disclose basic arrest data, including the identity of the person arrested and the status of the charges, while the underlying investigative materials remain restricted. If you’re looking for arrest information specifically, the booking log or public arrest record may be available faster and at no cost compared to the full arrest report.
Supplemental Reports
Investigations rarely end the day the first report is filed. When new evidence surfaces, a witness comes forward, or stolen property is recovered, officers create supplemental reports that attach to the original case number. These are never standalone documents. Each one links back to the primary file, building a chronological record of everything that happened after the initial response.
For anyone tracking a case, supplemental reports are where the real development happens. The original incident report says “a laptop was stolen.” The supplemental might say “the laptop was recovered at a pawn shop and a suspect has been identified.” Prosecutors use these updates to build their case files, and detectives use them to track patterns across multiple incidents. If you’ve filed a report and want to know whether anything has developed, ask the department whether any supplemental reports have been added to your case number.
Which Report You Actually Need
Knowing which type applies to your situation saves time and often money. For an insurance claim after a crash, you want the traffic accident report, not the incident report. For a theft or vandalism claim, you want the incident report. For court or background purposes involving someone taken into custody, you want the arrest report, and for status updates on an ongoing investigation, you want any supplemental reports attached to the original case number.
Insurance claims drive most requests. For minor fender benders with no injuries, many insurers process a claim with photos and a written statement. For anything involving theft, a hit-and-run, vandalism, significant property damage, or injuries, insurers almost always expect a police report. Some comprehensive-coverage policies explicitly require one for theft and vandalism claims.
In court, these reports occupy an unusual legal position. They’re generally considered hearsay, meaning they’re out-of-court statements offered to prove what happened. Federal Rule of Evidence 803(8) creates an exception for public records, but in criminal cases, the exception specifically excludes matters observed by law enforcement.2Cornell Law Institute. Rule 803 Exceptions to the Rule Against Hearsay That means a police report is more likely to be admitted in a civil lawsuit than in a criminal trial. In small claims court, evidentiary rules are typically relaxed, and police reports are generally admitted without formal objection.
What Gets Redacted Regardless of Type
Police reports are public records in most circumstances, but “public” doesn’t mean everything is visible. Departments routinely redact sensitive information before releasing any report, no matter its type.
Juvenile identities are the most consistently protected category. Courts and agencies are required to remove information that could identify a minor involved in an incident, and some jurisdictions go further by redacting details like the exact time and location when those specifics could lead someone to figure out who the juvenile is.
Victim information receives similar protection in many states, particularly for crimes involving sexual assault or domestic violence. Reports released to the general public will have the victim’s name, address, and contact information blacked out. The victim, their attorney, and prosecutors can typically access the unredacted version.
Agencies also withhold or redact information that could compromise an active investigation. If releasing a detail would tip off a suspect, endanger a witness, or undermine an undercover operation, the department can legally hold it back. The copy you receive might have blacked-out sections, especially if the case is still open. Once the investigation closes, you can often request a less-redacted version.
Getting a Copy
Every state has its own public records law governing access. The federal Freedom of Information Act does not apply to state or local agencies, so your right to obtain a report comes from your state’s open records or sunshine law instead.3FOIA.gov. Freedom of Information Act Frequently Asked Questions All 50 states have enacted some version of these laws, though procedures and exemptions vary.
Before contacting the department, gather identifying information. The single most useful piece of data is the case number, which is the unique alphanumeric code assigned when the report was filed. With it, a records clerk can pull your file in seconds. Without it, you’ll need the date and approximate time of the incident, the street address or intersection, and the names of the people involved.
Requests usually work one of three ways:
- In person at the records division of the department that handled the incident. Bring a government-issued ID and your case number. Many departments can print the report while you wait.
- By mail with a written request, a copy of your ID, and payment. Include a self-addressed stamped envelope if the department requires one.
- Online through a department portal where you can search by case number and download a copy. For traffic accident reports, third-party services like LexisNexis BuyCrash partner with law enforcement agencies in many states.
Fees vary. Some departments charge per page, others charge a flat rate per report, and some provide basic copies free through their online portals. Expect to pay somewhere between a few dollars and $25 for a standard report. Certified copies, which carry an official agency seal and are sometimes required for court filings, may cost more. In-person and online requests are often fulfilled the same day; mailed requests can take a week or two.