Summary: The Extent of Weeding

Brief / Summary

The Extent of ‘Weeding’ of Stolen Vehicle Records on the PNC and DVLA
Date: 5 January 2026
Purpose: Oversight, assurance, and policy review

1. Purpose and Audience

This brief summarises the findings of the accompanying report (to follow), ‘The Extent of Weeding‘, which examines the potential systemic under-recording of stolen vehicles arising from police processes governing the confirmation and deletion (“weeding”) of Lost or Stolen (LoS) vehicle markers on the Police National Computer (PNC).

The document is intended for:

Police forces and Professional Standards Departments
Oversight bodies (HMICFRS, OPCCs, ICO)
Policymakers (Home Office, NPCC, DVLA)

It is not an allegation of misconduct or criminal liability. It is an evidence-based request for authoritative determination and governance review.

2. Issue in Summary

When a vehicle is reported stolen, a LoS marker is placed on the PNC. If that marker is not confirmed within a defined period (six weeks), it is automatically deleted (weeded).

Only confirmed LoS markers are transmitted to the DVLA. The consequence is that from day one, a vehicle may:

be reported stolen,
not be recovered,
yet cease to appear as stolen at the DVLA.

3. Why This Matters

Where weeding occurs at 6 weeks:

vehicles may appear legitimate in PNC, ANPR, DVLA and provenance checks,
innocent purchasers and insurers may be exposed to loss,
recovery opportunities are reduced,
police recovery and clearance metrics may be distorted,
national vehicle-theft statistics may be understated.

The issue is therefore one of data integrity, public protection, and governance, not administrative error.

4. Key Findings (High Level)

A. Persistent data discrepancy

Analysis of available data shows a material and persistent gap between:

police-recorded vehicle thefts (Home Office/force data), and
stolen-vehicle notifications received by the DVLA.

This discrepancy:

remains after accounting for timing mismatches and edge cases,
appears consistent with systematic deletion of unconfirmed records.

B. Identified mechanism

The six-week automatic deletion of unconfirmed PNC LoS markers provides a plausible and scalable explanation for the discrepancy.

C. Gwent Police as a case study

Gwent Police data illustrates the issue clearly:

vehicle theft figures recorded by the force and Home Office materially exceed DVLA stolen-vehicle notifications,
assurances that the issue had been resolved were undermined by a further confirmed weeding event in November 2025,
internal monitoring safeguards were reduced or removed, with reliance on manual confirmation.

D. National indicators

When DVLA and Home Office data are compared across forces:

wide variation is observed,
several forces show discrepancies exceeding 100%,
the pattern is inconsistent with benign explanations alone.

5. What This document Does — and Does Not — Claim

This paper does not claim:

that all discrepancies are caused by weeding,
that DVLA data is inherently unreliable,
that individual officers act improperly.

It does claim:

that automated deletion of unconfirmed LoS markers is a credible, systemic risk,
that the scale of the discrepancy requires formal determination,
that continued reliance on current processes undermines confidence and safeguards.

6. What Is Required Now

Authoritative determination of cause

A national body (most appropriately the Home Office, with NPCC and DVLA involvement) should establish whether weeding is a primary driver of the discrepancy and quantify its effects.
Governance and assurance review

Forces should demonstrate:
- who owns PNC LoS data integrity,
- what monitoring exists,
- how failures are detected and corrected.
Policy reconsideration

If confirmation at creation is feasible, the necessity of six-week automated deletion should be reconsidered at source.

7. Core Conclusion

If the discrepancy identified is substantially driven by weeding, the problem is systemic rather than exceptional.

Absent reform, stolen vehicles will continue to fall out of national records, public confidence will be eroded, and victims, insurers, and innocent purchasers will remain exposed to avoidable harm.

Document submission

The full report, together with the above summary, was submitted 05/01/2026, to the following for consideration:

His Majesty’s Inspectorate of Constabulary and Fire & Rescue Service (HMICFRS) – inviting HMICFRS to consider whether the operation and oversight of six-week automated deletion of PNC Lost/Stolen markers merits inclusion in inspection activity or thematic review.
The Home Office – seeking confirmation as to whether the Home Office intends to assess this issue.
The NPCC – seeking confirmation of the NPCC’s position on weeding
Gwent police – in furtherance of a request for information ‘UNCONFIRMED PNC LoS Markers For VRMs‘, currently the subject of Internal Review. The submission relates to the information sought and to the public-interest considerations engaged by the review.
The DVLA – to assist understanding of whether systemic upstream processes may be affecting the completeness of the DVLA’s register, upon which the public, industry, and government rely. Additionally, seeking confirmation the DVLA has visibility of confirmation-dependent data flows and whether any assurance or reconciliation exists where stolen-vehicle notifications are not received.
The ICO – for awareness; the information complements issues previously considered by the ICO regarding accuracy, transparency, and the public interest in the operation of vehicle-crime data systems.

Investigating officers and staff are reminded please of the need to confirm stolen vehicles on PNC so they are retained beyond the initial period implemented via FCR fast-time updates via ICAD. Failure to do this can result in the ‘unconfirmed’ PNC circulation being deleted from the system after a 6-week period and opportunities to recover the vehicle being lost.
When a vehicle is reported Lost or Stolen, the investigating officer has the responsibility for updating PNC and the subsequent references on NICHE. This must be done by the submission of a Lost/Stolen Vehicle Message Switch (MSS) to Data Bureau. During the current indisposition of MSS on Windows 10, the contingency of sending an email to !Data Bureau with the necessary details applies.

06/03/2023 – The CMASafety-NET. CMA Claims

25/08/2023 – Vehicle Recorded Stolen – Check Again? CMA Claims

09/10/2023 – How Many Stolen Vehicles Are Not Recorded Stolen? LinkedIn

22/05/2024 – The issue of a weeded was raised with Gwent police. The issue was again raised in late 2024 with Gwent advising they had addressed the problem … yet it continued to occur. The Gwent police time line can be read here.

it is noted that Gwent police have one of the highest anomally figures when comparing their DVLA ‘stolen’ notifications and the Home Office LoS records.

29/05/2024 – Vehicles – ‘REPORTED’ but not ‘RECORDED’ as stolen. LinkedIn

29/07/2024 – a FoIA request of the NPCC about the 6-week auto-weeding of unconfirmed PNC LoS reports. WDTK FoIA response:

The NPCC does not hold information captured by your request. Referred to the PNC User Manual at page 175 – 9.1. Goodwill disclosure:

When a force puts on a Lost or Stolen (LOS) report – unless there is a Crime or other Police Reference, this will be logged as ‘unconfirmed’ where the circumstances are not yet fully known.
With an ‘unconfirmed’ LOS report, these will as has been raised by the originator, be weeded off automatically at 6 weeks.
Prior to this, at the 4 week mark the force will be notified by way of a Daily Action File (DAF) which will highlight an unconfirmed LOS Marker.
Should no action be made on that repot (sic) it will be weeded 2 weeks later when the report has reached 6 weeks as not (sic) confirmed crime has taken place.
Should the circumstances be known and the marker is shown as ‘confirmed’ the entry will remain on the application for 6 years from the date of the original input.
At each annual anniversary of the marker, the force will be notified by way of DAF that there is a LOS confirmed marker for the force to confirm this is still correct. This annual review was added at the last review of the process (which was undertaken more than 5 years ago), prior to this, the DAF was sent on the 6 year mark advising weeding

23/08/2024 – to the NPCC vehicle crime lead:

I have made a request about ‘weeding’. I am concerned this process is causing unnecessary problems; that it is archaic, serves no good purpose and if abolished, could reduce police admin’. It appears to assist none, other than those who steal vehicles. I have several suggestions about vehicle theft being concerned at the marked increase. I would welcome the opportunity to develop ideas to assist the police, victims, and their insurers

No reply received, but on 07/11/2024, the NPCC vehicle crime lead issued a circular (below).

03/11/2024 – Calling on the remaining police constabularies to ADDRESS 6-week WEEDING – of PNC LoS records. LinkedIn

07/11/2024 – All Chief Constables Circular re ‘Weeding’. CarCrimeUK – The NPCC vehicle lead was ‘writing to request your assistance in the correct recording of all stolen vehicle reports via the Police National Computer (PNC). This request is part of an ongoing effort to ensure the accuracy and completeness of PNC records in relation to stolen vehicles.’

30/11/2024 – How many stolen vehicles have fallen foul of this (weeding) process; are stolen but no longer recorded as such? CarCrimeUK

11/12/2024 – an FoIA request of Gwent police re weeding. WDTK. The request was deemed vexatious by the constabulary. However, the ICO disagreed citing that Gwent polcie had overstated the number of requests I had presnted and, when asked to support their statement, Gwent police failed to do so.

29/08/2025 – the ICO issued its Decision Notice (DN) IC-355444-P4T3

29/08/2025 – the NVCRP were approached about weeding. CarCrimeUK

05/11/2025 – another Gwent police weeded VRM and the constabulary confirmed ‘the FCR (Force Control Room) does not QA every LOS report due to risk management and capacity‘. CarCrimeUK

18/11/2025 – Why a quiet, outdated process is undermining theft investigations — and why it needs fixing nationally, now. LinkedIn

02/12/0225 – an approach to the NVCRP regarding weeding, abolishing the process. CarCrimeUK

29/12/2025 – to the NPCC vehicle crime lead ‘have there been any developments regarding ‘weeding’; the automatic 6-week removal of PNC LoS markers held against VRMs that are not ‘confirmed’?

awaiting a response

06/01/2026 – Are 1,000’s of stolen vehicles not recorded as such on the PNC or at the DVLA? A comparison of DVLA ‘stolen’ data with Home Office LoS records for each constabulary in England & Wales. CarCrimeUK