Start with what you can see on the collar
Before anything technical, examine the collar methodically. Turn every tag over — numbers are often engraved on the reverse — and check for a flat plate riveted or stitched to the collar itself, which owners sometimes use instead of a dangling tag. Look for a scannable code tag as well as printed details. If the collar is loose, empty, or clearly old, note that too, because it tells the owner and warden something about how long the dog may have been out. Photograph the collar and the dog before removing anything, in case details are needed later by the owner, the warden, or the practice.
What your hands can and cannot tell you
A microchip is roughly the size of a grain of rice, normally sitting under the skin between the shoulder blades. In a lean dog you may feel a small firm shape there; in most dogs you will feel nothing conclusive, and chips can also shift position over time, sometimes travelling down a shoulder or chest. So a careful feel is worth doing — run your fingers slowly over the neck, shoulders, and upper chest — but treat the result as a hint, never a verdict. Only a scanner gives a real answer, which is why the next step matters.
Getting a proper scan, free and quickly
Veterinary practices, rescue shelters, and dog wardens scan found dogs without charge, and many will do it in the car park if the dog is nervous about going inside. Phone ahead so staff are ready, transport the dog secured — a slip lead and a closed car — and keep it separate from your own animals. If a number is found, the practice or warden contacts the registered keeper through the database; privacy rules mean they may not hand the owner's details to you directly, but they will make the call while you wait with the dog.
While you wait: broaden the search sensibly
Report the dog to your local warden and shelters promptly, because owners usually phone those first, and post a clear photo with the exact place and time found in local community groups. Describe one identifying detail privately rather than publishing it — a genuine owner can confirm a marking, collar detail, or quirk that a false claimant would not know. Keep the dog safe, watered, and calm, and be cautious about handing it to anyone who cannot describe those withheld details or show their own photos of the dog.
When the dog's ID works instantly
The fastest reunions happen when identification needs no equipment or database call at all: a readable tag, or a code any phone can scan. That is worth knowing as a finder, because it tells you what to look for before assuming a long process — check the collar once more for a code tag if the printed tags are missing or out of date. With KinsLe's Verified QR ID Pet Profiles, scanning the collar code opens the dog's profile and lets a finder reach the owner directly, turning a found-dog afternoon into a same-hour reunion.