For decades, the logistics industry has invested in answering one question: where is it?
Today, we can scan parcels, identify pallets, track vehicles and confirm deliveries. Yet another question often arises only when something goes wrong: what happened along the way?
A shipment can arrive on time, with every tracking system showing a successful journey, while its contents are missing or compromised. The movement record may be complete, even when the explanation is not.
That is the difference between visibility and accountability.
What Tracking Shows — and What It Cannot
Most tracking systems are designed around identification, location and movement. A barcode scan places an item at a checkpoint. An RFID read identifies an asset within a reader's coverage. GPS can show where a vehicle has travelled. These capabilities are fundamental to modern logistics.
But they do not necessarily reveal whether a container was opened between checkpoints, when its contents became vulnerable, or who was responsible for it when something went wrong.
Consider a tote leaving a distribution centre. It is scanned out, loaded onto a vehicle and scanned in at a store. According to the tracking records, the journey is complete. But if a shortage is discovered at the receiving end, those scans alone cannot establish whether it arose during packing, loading, transit, unloading or after arrival.
The information isn't wrong. It simply answers a different question.
Where Accountability Breaks Down
Logistics is built on handovers. A picking team prepares an order, dispatch releases it, a haulier takes charge, a yard team manages the vehicle and a receiving team accepts the delivery. Responsibility can change at every stage.
Yet recording that goods have moved is not the same as recording their security or condition when responsibility changes.
A signature might acknowledge ten containers without verifying their contents. A depot scan establishes arrival, not whether a container was accessed earlier. A physical seal may suggest interference, but only if somebody checks it and records the result. CCTV can help an investigation, but rarely follows an individual container through every stage of its journey.
Yards and loading bays make this problem particularly visible. Goods wait, change vehicles and pass through different teams. These are legitimate activities, but gaps between recorded events can make a later discrepancy difficult to reconstruct.
When a loss occurs, businesses piece together paperwork, timestamps, camera footage and staff accounts. Even after considerable effort, the outcome may be an assumption rather than an answer.
The consequences extend beyond missing stock: investigation time, disputed responsibility, delayed claims, operational disruption and damaged trust. And if an organisation cannot establish where a process failed, how can it reliably improve it?
From Paper to Intelligent Systems
Logistics technology has advanced by making information easier to record, retrieve and act upon.
Paper manifests, delivery notes and signatures established a record of dispatch and receipt. Barcodes made identification faster and more consistent, creating digital records at defined checkpoints. RFID took that further, enabling assets to be identified without direct line of sight or individual manual scanning.
GPS and telematics expanded visibility to vehicles and journeys. Connected sensors added information about temperature, shock and movement. Today's software can combine data from different systems and flag operational exceptions.
These developments have transformed logistics. But there is a distinction between knowing an asset's identity, knowing where its vehicle travelled and having evidence of what happened to the asset itself.
The next evolution may not be another way to locate goods. It may be a way to make important events between checkpoints visible.
Towards an Electronic Chain of Custody
Traditionally, chain-of-custody records focus on handovers: who released something, who accepted it and when. Those records remain essential, but the container itself has often contributed little independent evidence.
This is the problem that led me to develop SMART TOTE. The system is designed to add a record of physical container events to the conventional movement history, so that exceptions can be reviewed alongside the custody process. Its purpose is not to replace existing identification and tracking systems, but to supply a layer of evidence they do not normally capture.
Technology can now begin to close that gap. Where a container is equipped to detect opening, closing or tamper-related events, it can retain records of those events even outside communications coverage. The information can then be retrieved when the container reaches compatible infrastructure.
There are limits worth stating clearly. Recording that a container opened does not automatically identify who opened it. An event does not necessarily reveal its precise location. And an alert cannot be delivered immediately if the container is outside communications coverage. The quality of any chain-of-custody record still depends on the procedures, handovers and infrastructure around the technology.
Electronic evidence cannot eliminate every uncertainty. But it can reduce the number of questions that previously had no recorded answer.
Electronic Accountability: An Emerging Sector
As logistics technology evolves, a concept deserves greater attention: electronic accountability.
Tracking and visibility are established capabilities. Electronic accountability could become a distinct, complementary field, concerned with bringing event evidence, custody records and exception reporting together to establish a more auditable account of how assets have been handled.
It is not simply another tracking system, and it should not be confused with a promise to identify the cause or perpetrator of every incident. Rather, it is an approach to reducing the gap between a confirmed movement and an understood event.
The opportunity extends beyond retail distribution. Sensitive documents, pharmaceuticals, high-value goods and defence supply chains involve different risks, yet all depend on confidence in what happened while assets were in someone else's care.
The industry does not need to abandon barcodes, RFID, telematics or existing logistics platforms. It needs to build upon them, connecting what we know about movement with what we can establish about access, exceptions and responsibility.
For decades, logistics has worked to tell us where things are.
The next frontier is understanding what happened to them.
ABOUT THE AUTHOR
Carl Mason is the founder and inventor of SMART TOTE. He has 27 years of experience in the electronic security industry, including 17 years running his own business managing national security rollout projects for major UK retailers and banks.
www.smart-tote.co.uk