Should I take a found phone to the police?

If there are staff where you found it, hand it to them first, since that's where the owner will ask. Otherwise keep it charged so the owner can call it, or hand it to the police.

Is it illegal to keep something I found?

In many places, keeping found property you could reasonably return can be treated as theft. Rules vary, so hand it in or make a real effort to find the owner.

How do I know the person claiming the item is the real owner?

Ask them to describe details you left out of your post, match names on cards to their ID, or ask them to call or unlock a phone in front of you.

Can I post a lost or found item on Asyncbit?

Yes. The lost and found board takes lost or found posts with a title, description, location, photos and category, and you can mark a post resolved once the item is returned.

Everyday life

What to do when you find something lost

The first ten minutes, where each kind of item should go, how to post about it without helping a fake claimant, and how to be sure you're returning it to the right person.

By the Asyncbit teamReviewed September 24, 20267 min read

If you find something someone has lost, the best move is usually to hand it in where the owner will look first — the staff, security desk or lost-property office of the place you found it. For valuables like phones, wallets and ID cards found somewhere with no staff, take them to the police or keep them safe while you actively look for the owner. Note where and when you found it, and don't keep, use or spend anything: in many places, holding on to found property you could reasonably return is treated as theft.

If you post about it — on a local group or a lost and found board — describe the item in general terms and hold back a few details so you can check that whoever gets in touch is really the owner. The rest of this guide covers what to do with each kind of item, how to verify ownership, and a safe handover.

The first ten minutes

1
Check whether the owner is still nearby
A bag on a café chair might belong to someone at the counter. Look around, ask the people nearby, and wait a minute before picking anything up.
2
Note where and when
Write down the exact place and time, and take a photo of the item where you found it. Owners retrace their steps, and these details help match them up.
3
Decide whether to move it
Something left near where it belongs — a bicycle at a stand, a water bottle at a gym — may be best left alone or handed to the nearest staff. Something that will disappear if left, like a phone on a bus seat, should be picked up.
4
Look only as far as you need to
It's reasonable to open a wallet to find a name or an ID. It isn't reasonable to scroll through a phone or read papers in a bag.

Where to take each kind of item

Where found items should usually go

Item	Best first step	Also worth knowing
Phone	Hand to the venue's staff or security, or keep it charged and switched on	Owners often call their own number. Many phones can show emergency contact information from the lock screen's emergency screen.
Wallet or cash	Venue staff, or the police if found in the street	Don't remove or count out the cash in private; if you must check contents, do it in front of staff.
ID card, passport, licence	The police, or the issuing office — an office ID to that company's reception	Never post a photo showing the ID number or full details online.
Keys	Venue staff, or leave at the spot if it's clearly where they fell	A keyring charm or tag is a good detail to hold back for verification.
Anything on public transport	The driver, conductor or the operator's lost-property service	Transport operators usually log items by route and time.
Bags and laptops	Venue staff or police	If a bag is left unattended in a crowded public place and looks suspicious, alert staff or security rather than picking it up.

Phone: Best first step:Hand to the venue's staff or security, or keep it charged and switched on; Also worth knowing:Owners often call their own number. Many phones can show emergency contact information from the lock screen's emergency screen.

Wallet or cash: Best first step:Venue staff, or the police if found in the street; Also worth knowing:Don't remove or count out the cash in private; if you must check contents, do it in front of staff.

ID card, passport, licence: Best first step:The police, or the issuing office — an office ID to that company's reception; Also worth knowing:Never post a photo showing the ID number or full details online.

Keys: Best first step:Venue staff, or leave at the spot if it's clearly where they fell; Also worth knowing:A keyring charm or tag is a good detail to hold back for verification.

Anything on public transport: Best first step:The driver, conductor or the operator's lost-property service; Also worth knowing:Transport operators usually log items by route and time.

Bags and laptops: Best first step:Venue staff or police; Also worth knowing:If a bag is left unattended in a crowded public place and looks suspicious, alert staff or security rather than picking it up.

What the law generally expects

Rules on found property vary a lot between countries and states, so treat this as general orientation, not legal advice. Many places require finders to hand in items of value, or to make reasonable efforts to return them. Keeping something when you could have found the owner can be treated as theft or a similar offence. Some places let a finder claim an item if nobody comes forward after a set period, usually only after it has been handed in and logged officially. If a finder's reward exists, it's generally the owner's choice, not a condition you can set.

How to post about something you found

Posting in a local online community or on a lost and found board widens the search enormously, because the owner is usually searching too. The trick is to be specific enough for the owner to recognize it and vague enough that a chancer can't claim it.

What to include and what to hold back in a found-item post

Include	Hold back
The type of item and its color — “black wallet”, “blue water bottle”	Brand, model, serial or IMEI numbers
The general area and the date — “near the library, Tuesday afternoon”	The exact spot, if only the owner would know it
A photo that shows the item but not its details	Contents, names on cards, lock-screen wallpaper, stickers, scratches
Where it is now — “handed to the front desk” — if you've done that	Your own home address or schedule

The type of item and its color — “black wallet”, “blue water bottle”: Hold back:Brand, model, serial or IMEI numbers

The general area and the date — “near the library, Tuesday afternoon”: Hold back:The exact spot, if only the owner would know it

A photo that shows the item but not its details: Hold back:Contents, names on cards, lock-screen wallpaper, stickers, scratches

Where it is now — “handed to the front desk” — if you've done that: Hold back:Your own home address or schedule

How to check someone really is the owner

Ask them to describe what you held back. The wallpaper, the keyring charm, what's in the side pocket, a scratch on the case.
For phones, ask them to prove it. Call the phone from their other number, or unlock it in front of you.
For wallets and IDs, match the name. The name on the cards should match an ID they show you.
Ask for an old photo. People often have a photo that shows the item — a bag in a trip picture, a bike outside their building.
Be cautious with multiple claimants. If two people claim the same thing, hand it to staff or the police and let them sort it out.

Hand it back somewhere public — the same kind of busy, well-lit place recommended for buying and selling safely — or leave it with venue staff for the owner to collect. You don't owe anyone your address.

Common mistakes finders make

Posting a photo of an ID card, bank card or boarding pass with the numbers visible. It helps fraudsters more than the owner.
Handing an item to someone who says they're “collecting it for a friend” without checking with the friend.
Asking for money before returning something. A reward is the owner's choice.
Inviting the claimant to your home or going to theirs.
Holding on to it “until I have time” — the longer you wait, the more likely the owner has given up.

If you're the one who lost something

Retrace your steps and call the places you visited; ask for lost property by the time you were there.
For a phone, use your phone maker's find-my-device service to locate, lock or show a message on the screen.
Block bank cards immediately in your banking app, and change passwords for anything that was signed in.
For lost ID documents, report the loss; replacement often requires a police report or a formal declaration.
Post on a local lost and found board with the details you're sure about, and describe what only you would know when someone gets in touch.

Using Asyncbit's lost and found board

Asyncbit has a dedicated lost and found board for exactly this. You post an item as lost or found with a title, description, location, photos and a category — electronics, stationery, clothing, ID card, keys, wallet, bag, bottle or other — so people can browse what matches.

Unresolved items also appear in the For you feed, so a post can reach people well beyond your followers. The guide to how social media feeds work explains why that matters.
Contact happens through chat. One-to-one messaging needs a mutual follow, so expect a quick follow-back before you can talk.
When the item is back with its owner, mark the post resolved. Posting earns 5 points and resolving earns 10 more, a small nudge to close the loop.
Lost and found posts carry your name, so apply the hold-back rule above: describe enough to be recognized, keep the identifying details for verification.

For how a whole group can run a shared board — an apartment building, a club or an office floor — see running a lost and found board.

The short version

Hand found items in where the owner will look first, and take valuables and IDs to staff or the police.
Don't keep, use or spend anything you find; in many places that can be treated as theft.
When you post about a found item, hold back identifying details and use them to verify the owner.
Return items in a public place or through staff, and never post ID numbers online.

Frequently asked questions

Should I take a found phone to the police?: If there are staff where you found it, hand it to them first, since that's where the owner will ask. Otherwise keep it charged so the owner can call it, or hand it to the police.
Is it illegal to keep something I found?: In many places, keeping found property you could reasonably return can be treated as theft. Rules vary, so hand it in or make a real effort to find the owner.
How do I know the person claiming the item is the real owner?: Ask them to describe details you left out of your post, match names on cards to their ID, or ask them to call or unlock a phone in front of you.
Can I post a lost or found item on Asyncbit?: Yes. The lost and found board takes lost or found posts with a title, description, location, photos and category, and you can mark a post resolved once the item is returned.

See it for yourself

Asyncbit is free, with no paid tier and no ads. Everything described here is available from the first day.

What to do when you find something lost

The first ten minutes

Check whether the owner is still nearby

Note where and when

Decide whether to move it

Look only as far as you need to