How to Report Magnet Fishing Finds — When It's Required & How to Do It

Not every find requires a call to law enforcement, but knowing which ones do — and exactly how to handle the paperwork — protects you legally and ensures the right authorities get involved when it matters.

The Reporting Decision Tree

The first question after any significant find is: am I legally required to report this? The answer depends on what you found, where you found it, and which state you're in. Here's the decision framework:

• Firearms: Almost always require reporting. In most states, recovering a firearm from a waterway and failing to report it to law enforcement within a reasonable time creates legal exposure. See our detailed guide: Found a Gun While Magnet Fishing.
• Suspected explosive ordnance: Always requires immediate 911 call. No exceptions. See: Found Unexploded Ordnance?
• Potentially historical items (100+ years old on public land): Reporting required under ARPA or state antiquity statutes. Contact your State Historic Preservation Office. See: Historical Artifacts and the Law.
• Items with visible ownership markings (serial numbers, engravings, registration tags): Many states have found property statutes that require reporting property of value to local law enforcement so the owner can claim it.
• General scrap metal, junk, unidentifiable items: No reporting required. Dispose of responsibly — recycling centers accept scrap metal, and leaving items on the bank is littering in most jurisdictions.

Found Property Law: The Framework You Need to Know

Every state has some version of "found property" law — a statute governing what happens when someone finds property that appears to belong to someone else. These laws balance the finder's interests against the original owner's right to reclaim property. For magnet fishing, found property law matters most for items that are clearly valuable but not in the specialized categories (firearms, ordnance, artifacts) covered by other statutes.

The general framework in most states: if you find property worth more than a specified threshold (often $50–$250 depending on state), you must report it to local law enforcement within a defined period (often 5–30 days). The agency holds it for a statutory period (typically 90 days to one year). If no owner claims it, the finder may have a right to claim the property — but this requires going through the process, not just keeping the item.

States with particularly detailed found property statutes that apply clearly to magnet fishing finds: California (Civil Code § 2080), Florida (§§ 705.101–705.106), Texas (Property Code § 72.001), and New York (Personal Property Law § 251). Find your state's rules on your state page.

How to Document a Find Before Reporting

Documentation serves two purposes: it establishes your account of the find for law enforcement or agency review, and it creates a record that you acted responsibly and in good faith from the moment of discovery. Here is what to document:

1. GPS coordinates of the exact find location — the waterway bottom, not where you're standing. Most smartphones can provide coordinates to 10-foot accuracy.
2. Date and time of recovery.
3. Depth and conditions: approximate water depth, current strength, visibility. This contextual information can help law enforcement or archaeologists understand what else may be in the same area.
4. Photographs of the item as found — before any cleaning, from multiple angles. Include a scale reference (a coin, a hand, a ruler) in at least one photo.
5. Description of retrieval: did it come up on the first pass, was it partially buried, was it connected to anything else?
6. Your contact information: full name, phone number, address. This is what you give the reporting agency.

Who to Call for Different Types of Finds

Firearms

Local non-emergency police line (save this in your contacts before every trip). Give your name, location, and a description of what you found. They will dispatch an officer. You do not need to transport the weapon — wait for law enforcement to come to you. Request a case number or receipt when they take possession.

Suspected Explosive Ordnance

911 only. Do not try to transport, identify, or call a non-emergency line. Emergency dispatch will contact EOD. Back away 300 feet before calling. Give precise location first, then describe the object.

Historical Artifacts

Your State Historic Preservation Office (SHPO). Every state has one — contact information is on your state law page. For items found on federal land, contact the managing agency's cultural resources officer (Corps of Engineers, Forest Service, BLM each have these). Expect to describe the item and be asked to either surrender it, secure it in water, or bring it to a designated office.

Potentially Stolen Property (items with serial numbers)

Local non-emergency police line. They can run the serial number through NCIC (the FBI's National Crime Information Center) to check for theft reports. If it's not stolen, you can discuss found property procedures with the officer. If it is stolen, it becomes evidence in that case.

Human Remains

This is rarer but documented in magnet fishing communities. If you recover anything that could be human bone or remains, stop, call 911, and do not disturb the find further. This is a crime scene until law enforcement determines otherwise. Do not post on social media before law enforcement responds.

Chain of Custody: Why It Matters

Chain of custody is the documented sequence of who possessed an item and when, from the moment it was found. In any criminal investigation involving a recovered item, chain of custody determines whether the item is admissible as evidence. If you found a firearm used in a crime and then handled it extensively, cleaned it, or transported it before turning it over, you may have compromised the chain of custody in ways that affect an investigation — and potentially expose yourself to obstruction-adjacent liability.

The practical meaning for magnet fishers: minimize handling of significant finds, document everything you do with the item from the moment of recovery, and turn it over to law enforcement as quickly as possible with your documentation intact.

After You Report: What to Expect

For firearms: expect the item to enter the law enforcement property system. You will likely not get it back. You may receive a callback if the weapon is connected to an investigation that requires your witness statement.

For artifacts: expect to be contacted by a state archaeologist or cultural resources specialist within days to weeks. They may want to ask about the find location in more detail, as your GPS coordinates could point to an area of broader archaeological significance.

For general found property: expect to be given a claim number and told to check back after the statutory holding period if you want to claim the item. In practice, few people follow up on magnet fishing finds through formal found property processes for scrap metal — the administrative effort isn't worth the return. But for genuinely valuable items, the process is worth completing.