Breaking Down What People Actually Find in a Background Report
I've been running these for landlords, small employers, and occasionally people who want to check their own records. Most folks have no idea what actually shows up until they see it. There's a big gap between what movies tell you exists and what data brokers and county clerk databases actually contain. The first thing to understand is that a criminal history check isn't one single search. It's usually three or four separate lookups strung together, and each one pulls from a different bucket of records. That fragmentation matters because it means the result you get depends entirely on which layers you asked for and which ones you didn't bother with.
What Shows Up On A Criminal History Check
Here's the straightforward part. Name and date of birth will return a hit if someone used those identifiers when processed through any system. That includes arrests that never led to conviction, cases that were expunged but the database never got updated, and convictions that are years old. Sex offender registry data usually comes from a separate query, sometimes federated through the national database. Federal court records pull from PACER or a third-party aggregator. State-level searches vary wildly by state. The thing nobody warns you about is name collisions. I ran a check last month for a candidate whose name matched three other people in the same county. Two of those people had felony convictions. The third was a completely different person who'd been arrested once for a misdemeanor that got dismissed. The report flagged all three without clear disambiguation unless the search included middle initials, full birth date, and ideally a Social Security number trace. Without those, you're looking at a list of possibilities, not a confirmed match. Expunged records are another minefield. Some states clear them automatically from public search results. Others don't. I've seen jurisdictions where the record technically exists in the system but is marked as inaccessible, which still shows up on some background check platforms depending on how aggressively they scrape. A candidate might genuinely have no disqualifying history, and a sloppy search will still surface something that looks terrible.
How the Search Layers Actually Work
Criminal records live in a dozen different places, and none of them talk to each other. County courts, state repositories, federal courts, and correctional departments all maintain separate databases. Commercial aggregators like Checkr, GoodHire, and Sterling pull from multiple sources, but they each have different coverage gaps. Federal searches usually cover the last seven to ten years if you're doing employment screening, though that's a FCRA guideline, not a hard limit. Counties can go back indefinitely, and in some jurisdictions they don't apply any lookback period at all. New York, for example, has no statutory lookback limit for certain positions. California limits it to seven years for most private employment, but felony convictions for violent offenses stay visible indefinitely. The practical result is that two companies running the same search for the same person can produce very different reports. One might only check county level and miss a federal case. Another might aggregate federal and state and throw in a sex offender sweep. Neither is wrong. They're just checking different things.
Get the Full Details

If you're the subject of a check, you have the right to request your own report under the FCRA. Companies have to give it to you within fifteen days, usually cheaper if you go direct. That's useful because it reveals exactly what data source the employer used, which helps you understand why something showed up that shouldn't have.
Common Misunderstandings About What Appears
Arrests without conviction show up sometimes. That's because an arrest is a public record until the case is disposed of, and some databases never get updated after dismissal or acquittal. I've seen candidates rejected for arrest records that were over a decade old and resulted in zero charges. The employer assumed the arrest itself was the issue, not realizing the case had been thrown out. Misdemeanors are treated differently depending on who's running the search. Some platforms filter them automatically for certain industries. Others leave them in. Traffic offenses almost never appear unless you specifically ask for a driving record add-on. Juvenile records are generally sealed and shouldn't surface, but I've found instances where the seal didn't apply because the offense occurred before the state enacted its juvenile confidentiality laws, and the database just never caught up. Warrant information is another category that surprises people. Active warrants show up in some county-level searches, especially if the warrant is from the same jurisdiction where the search is being performed. Interstate warrants are trickier. The National Crime Information Center has them, but not every background check company queries NCIC. A candidate with an active bench warrant in another state might pass a standard check and then fail a more thorough one.
Here's the counter-intuitive part that most people miss: a clean report doesn't guarantee a clean record. It guarantees only that the specific databases and jurisdictions you searched didn't contain a match. If someone moved around a lot, or if a county clerk's office hasn't digitized its records, there will be gaps. I had a situation where a candidate passed every electronic search, and we didn't catch the felony conviction until we manually pulled the record from the county where the case originated. The aggregator hadn't indexed that particular court's records yet.

What You Should Do If Something Comes Up
First, verify the match. Make sure the person in the report is actually the person you're evaluating. Check dates of birth, addresses on file, and any other identifying markers. If there's any doubt, run a more specific search with additional identifiers before taking action. If the record is correct and old, consider whether it's relevant. The EEOC guidance from 2012 suggests that employers should consider the nature of the offense, the time elapsed, and the job context. A DUI from twelve years ago probably shouldn't disqualify someone from an accounting position. A fraud conviction from five years ago might be very relevant for the same role. If you believe a record is incorrect or belongs to someone else, you have the right to dispute it. The screening company must investigate and update or remove the record if it's inaccurate. That process usually takes thirty days. Keep copies of everything, including the original report, your dispute, and any response you receive.
For candidates reading this, pull your own report before the employer does. It gives you time to identify issues, gather documentation, and prepare an explanation if needed. A dismissed charge or an expunged record that's still showing up is easier to address when you have the court documents in hand.
When a Standard Check Isn't Enough
Sometimes you need more depth than a typical commercial report provides. Immigration positions, government contracts, and roles involving vulnerable populations often require fingerprint-based searches through the FBI's Identity History Summary. That's different from a name-based check and searches your prints against the national database, not just commercial aggregators. It's slower, more expensive, and usually requires the candidate to schedule an appointment at an approved collection site. Professional license boards also run their own checks, separate from what employers do. A real estate commission or a nursing board might search a broader set of databases than a routine background check company would touch. If you're applying for a licensed position, expect the licensing body to find something the employer's check missed. The limitations here are worth stating plainly. No criminal history check catches everything. Databases degrade, records get lost, and some jurisdictions simply don't participate in the systems that aggregators rely on. A comprehensive search costs more and takes longer, but even then there's always a residual uncertainty. That's just how the system works, and anyone telling you otherwise is selling something.