Physical assurance
What evidence supports the strength, fixing, resistance and reliability required for this setting? Review the evidence for the underlying physical protection.
Category & framework
Disguised Security
Technology™
A developing framework for physical security, exposure and authorised access.
Disguised Security Technology™ examines how appearance, location and patterns of use reveal information about physical access arrangements. This site sets out the developing category, its four-part framework, supporting context and questions for institutional review.
Current position
DST™ is an emerging proprietary framework. Independent validation and assessment methods remain in development. No active certification scheme is offered.
Read the status and boundariesStart here
Find what you need.
01 / The framework
Definition and
core principles.
A strong control still operates within an environment. DST™ asks whether that environment reveals more about access than it needs to.
DST in plain English
Assess the access arrangement in context.
The four-part model brings together physical strength, exposure, ease of authorised access and management responsibilities. The right balance depends on the setting.
It is intended to support established locks and access controls. Suitability depends on the property, its users, safety responsibilities and the risks that remain.
Request the framework documentsExposure and recognisability
What can others infer from appearance, location or patterns of use? Is that exposure adverse, neutral or necessary in this particular case?
Authorised discoverability
Can the intended user locate and operate the access arrangement reliably, including during an emergency or a change of staff?
Governance
Who gives permission, manages credentials and maintenance, records decisions and reviews the risks that remain?
02 / Where it may help
Potential applications
and suitability.
DST™ is relevant to cases where visibility, discretion or the way people use access deserves closer consideration. Each application requires a site-specific assessment.
Housing & property
Managed properties
Consider access for contractors, staff and authorised visitors where a visible access arrangement may be unsuitable or unnecessarily exposed.
Review: location, credentials and changes of responsibility.
Care & support
Discretion and dignity
Explore arrangements where appearance, privacy or a sensitive household context matters alongside dependable access for authorised users.
Review: safeguarding, usability and contingency access.
Estates & facilities
Operational access
Examine how physical access points and repeated operational routines communicate information across buildings and managed estates.
Review: user procedures, environmental fit and residual risk.
Practical introduction
Review an authorised-access problem.
Use these questions to prepare an initial discussion. These questions prepare a discussion; they do not provide a formal assessment or approval.
Describe the access need
Who needs unattended access, to which premises and for what purpose? Identify the person responsible for authorising and withdrawing access.
Explain why the current arrangement is unsuitable
Record the specific concern: exposure, interference, privacy, appearance or an operational difficulty. Consider whether an established solution already meets the need.
Set the safety and operational requirements
Include emergency access, safeguarding, ease of use, credential changes, maintenance and any existing procurement or product requirements.
Agree what an evaluation must establish
Define the questions, responsible reviewers and evidence needed before any decision to proceed. Keep observations separate from claims about security performance.
Opens your email application. Share an outline only; do not include access codes, sensitive resident details or security-critical locations.
03 / Research & evidence
Research and
evidence base.
The framework draws on questions about physical protection, exposure, authorised use and management. Independent guidance provides context; the proposed DST™ model still requires independent review.
Public research context
Implementation research context.
The linked university and programme publications concern KeySpot® development and innovation support. They document that journey; they do not independently validate the DST™ framework.
Read the innovation featureIndependent guidance and the trade-off
These public sources provide context for the decision variables. They do not endorse KeySpot® or recognise DST™.
- Secured by Design: external key safes — considers robust anchoring, reduced road or footpath visibility and essential end-user accessibility.
- North Northamptonshire Council: keysafe installation — considers secure fixing, landlord permission and positioning out of direct line of sight.
- UK Government: secure information boxes — describes identifiable repositories intended for fire-service use. This is a different asset and context, illustrating why visibility cannot be reduced by default.
Public sources checked 3 October 2026. Read each source in its own context; no named DST™ requirement is established by these examples.
How to interpret the material
| Material | What it supports | What remains to be established |
|---|---|---|
| Official framework and position paper | The publisher’s definitions, rationale and intended scope. | Independent review and validation of the proposed approach. |
| Public university and programme features | The development journey and innovation support described in those sources. | Security performance, procurement acceptance and suitability in other settings. |
| Proposed conformity framework | The direction of future assessment and governance work. | An operational scheme, assessment criteria and independent assurance. |
What further evaluation should establish
Authorised-user experience, practical access, credential management, environmental fit and remaining risks. Any security-performance claim needs appropriate evidence; support, publicity and research activity do not by themselves establish certification or approval.
Implementation example
KeySpot® in the
DST™ development context.
A product implementation can inform questions for research. Its operational evidence must be distinguished from evidence validating the wider framework.
Developing implementation example
KeySpot®
KeySpot® is the first developing implementation associated with DST™. It is pre-commercial: production-intent testing and manufacturing readiness remain to be established. Its intended role is specific cases where a conventional visible key safe is unsuitable. Suitability and any procurement requirements must be assessed case by case.
Discuss implementation evidenceEarly operational evidence
KeySpot® university research trials
Two KeySpot® research trials were completed at the University of Sunderland, with the University confirming that they were successful and created operational efficiencies for staff.
These trials concern KeySpot® operational use. They do not independently validate the DST™ framework or establish security performance, certification or a paid procurement outcome.
Review the evidence and its limits04 / Reference documents
Framework documents
for your review.
Use version-confirmed material when considering an application or research project. Earlier document links are being reviewed and are not offered here as current assessment guidance.
Request the current reference pack
For an institutional review, request the current public definition, position paper and development status. The publisher will confirm each document’s version and purpose before you rely on it.
Request the reference packOpens your email application. A request does not imply certification or procurement approval.
05 / Governance & status
Governance and
current status.
Developed and stewarded by KeySpot Security Ltd, with Mark Cowie as originator. The framework’s value depends on clear definitions, evidence and careful application.
An emerging framework
DST™ is not currently a British Standard, independent certification scheme, police or government approval, insurance approval, or a guarantee of crime prevention.
Future assessment
DST Certified® is a registered trade mark and a future conformity framework in development. It is not an active public certification scheme or a current product approval.
Developing methods
PARP™ (Premises Access Risk Profile) and RSI™ (Risk Signalling Index) are developing approaches. They still need independent review to establish whether assessments are consistent and useful. No validated universal DST™ score is presented here.
Safety and justified visibility
Visibility may be necessary for authorised users or emergency responders. Existing arrangements may already be adequate, and reduced visibility may be immaterial. Application must preserve lawful access, fire safety, safeguarding, emergency procedures and accountability. DST™ concerns physical access signalling, not surveillance or covert recording.
Framework stewardship and feedback
KeySpot Security Ltd publishes this material. To raise a correction or contribute evidence, identify the document version, section and basis for your comment. Any future independent governance or assurance arrangements will need to be separately established and described.
Send a correction or evidence contributionCommon questions
Before you take the next step.
Is DST™ a product or a framework?
DST™ is the emerging framework. KeySpot® is its first practical implementation. Reviewing the framework does not establish that a particular product is suitable or independently approved.
Does discretion replace physical security?
No. Discreet integration is an additional consideration alongside locks, access controls and responsible procedures. Remaining risks and safety requirements still need to be addressed.
Is there an active DST Certified® scheme?
No active public certification scheme is represented here. DST Certified® is a registered trade mark associated with a future conformity framework in development.
Can an organisation suggest changes or contribute evidence?
Yes. Send the document title and version, the relevant section, your suggested change and the supporting reason or evidence. Enquiries go to Mark Cowie at KeySpot Security Ltd.
Submit framework feedbackKey terms
- Authorised access
- Access permitted by the person or organisation responsible for the premises.
- Access signalling
- Information someone might infer from an access point’s appearance, location or patterns of use.
- Residual risk
- Risk that remains after a proposed arrangement and its controls are considered.
Framework review & contributions
Help develop and
review the framework.
We welcome critical review, relevant evidence and research enquiries. Identify the principle or document you are commenting on, your question or suggested change, and the evidence supporting it.