Physical assurance
Is the physical protection suitable?
Check the lock, its fixing, resistance and reliability against the needs of the property. Look for evidence that supports the required level of protection.
Physical security and authorised access
Disguised Security
Technology™
What does an access point reveal to someone passing by?
DST™ brings physical protection, visual exposure, dependable authorised access and clear responsibility into one framework for deciding how an access point should work.
Developed by Mark Cowie · KeySpot Security Ltd
Updated 9 October 2026 · Current development status
The framework
Four questions to ask.
The four-part model brings together questions already found in security guidance and access-management practice. DST™ is our synthesis of those questions; the model still needs independent review.
Exposure and recognisability
What can other people work out?
Consider what the appearance, position or repeated use of an access point reveals. Decide whether that visibility creates a concern, makes no difference or is necessary.
Authorised discoverability
Can the right people find and use it?
Carers, staff, contractors or responders need dependable access. Allow for emergencies, changes of staff and people unfamiliar with the property.
Governance
Who is responsible?
Identify who grants access, changes credentials, maintains the equipment and reviews the arrangement when circumstances change.
Use the four questions together, alongside established security and safety requirements. Request the framework documents.
Where it may help
Start with a specific access problem.
A more discreet arrangement deserves consideration where there is a clear concern about the existing one. Each property and its users need their own assessment.
Housing and managed properties
Access for contractors, staff or authorised visitors where an obvious access point is unsuitable or unnecessarily exposed. Consider its position, who has access and how permissions change.
Care and support
Situations where the appearance of an access point raises concerns about privacy, dignity or a sensitive household context. Dependable access, safeguarding and a backup arrangement remain essential.
Estates and facilities
Buildings where repeated access routines or the location of access points warrant closer review. Consider staff procedures, the surroundings and risks that would remain after a change.
Preparing a discussion
Explain the problem you need to solve.
These questions help prepare an initial conversation. They are not a formal assessment or approval.
Who needs access?
Explain who needs to enter, why, and who gives or withdraws permission.
What is wrong with the current arrangement?
Describe the actual concern: interference, exposure, privacy, appearance or a practical difficulty. Consider whether an established solution already meets the need.
What must any alternative preserve?
Include emergency access, safeguarding, ease of use, maintenance, credential changes and any product or procurement requirements.
What would an evaluation need to show?
Agree the questions, the people responsible and the evidence needed before deciding to proceed.
Share an outline only. Please leave out access codes, resident details and sensitive locations.
Research and evidence
What has been explored so far?
KeySpot® has been used in university research trials. The wider DST™ framework still needs independent review.
University of Sunderland 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.
That supports the account of practical use in those settings. It does not establish security performance, certification, paid adoption or independent validation of DST™.
- University of Sunderland video case study
The published account of KeySpot’s development.
- IOCT case study on LinkedIn
IoCT™ published a case study describing DST™ as the broader governance-led framework underpinning future innovation. This is an external narrative reference, not technical validation. LinkedIn may ask you to sign in.
- Hope Street Xchange innovation feature
Background on KeySpot’s development and innovation support.
Independent guidance and regulatory context
Public guidance already considers fixing strength, visibility, user access and responsibility. That supports the relevance of the questions DST™ brings together. It does not establish recognition or validation of our model, or endorsement of KeySpot®.
- Secured by Design: external key safes
Guidance on robust fixing, visibility from roads or footpaths and accessibility for users.
- North Northamptonshire Council: keysafe installation
Guidance on fixing, landlord permission and placement out of direct sight. The Council also specifies Police-recommended products and does not install self-purchased key safes; this is not an acceptance route for KeySpot®.
- UK Government: secure information boxes
A different context: the official fact sheet describes identifiable information boxes for fire-service use and the need to provide and maintain access. This illustrates why reducing visibility is not always appropriate.
These three guidance and regulatory sources were checked on 6 October 2026. Read each in its original context.
What still needs to be established
The framework documents set out our definitions and proposed approach. The next evidence needed is independent method review and prospective organisational evaluations showing whether the four questions improve real access decisions.
Further evaluation should examine user experience, reliable access, credential management, environmental fit and remaining risks. Practical use, public references, security performance and repeat paid adoption are separate evidence questions.
The first product example
KeySpot®
KeySpot® explores discreet external access by integrating key storage into an ordinary-looking fixture.
Its intended role is in specific cases where a conventional visible key safe is unsuitable. The property, authorised users and relevant buying requirements determine whether it is appropriate.
KeySpot® remains pre-commercial. Production-intent testing and manufacturing readiness still need to be established. Its practical trials can inform the research; they do not validate every application of DST™.
Ask Mark about KeySpot
KeySpot®
A product by KeySpot Security Ltd
Documents
Read the definition. Discuss the detail.
The public definition sets out the framework, its evidence and current development status.
Read the public definition · version 1.1 · 9 October 2026 · Download a copy
For an organisational or research review, request the current position paper and development pack from Mark.
Request the framework packCurrent status
A framework in development.
DST™ is developed and published by KeySpot Security Ltd, with Mark Cowie as its originator.
Independent assurance
DST™ is a proprietary framework. It is not a British Standard, independent certification scheme, police or government approval, insurance approval or guarantee of crime prevention.
DST Certified®
This is a registered trade mark associated with a proposed future conformity framework. There is no active public certification scheme or current product approval.
Assessment methods
PARP™ and RSI™ are developing assessment methods within the DST™ work. They need independent review; no validated universal DST™ score is offered.
Safety and visibility
Authorised users and emergency responders may need an access point to be visible. Any change must preserve lawful access, fire safety, safeguarding, emergency procedures and accountability. DST™ concerns physical access, not surveillance or covert recording.
Corrections and critical feedback are welcome. Include the document version, relevant section and supporting evidence. Send feedback to Mark.
Common questions
A few useful distinctions.
Is DST™ a product?
DST™ is the developing framework. KeySpot® is its first product implementation. Each product or application needs its own evidence and suitability checks.
Does discretion replace a strong lock?
No. It is an additional consideration alongside suitable physical protection, dependable access and responsible procedures.
Can I get DST Certified® approval?
No active public certification scheme is offered. The registered trade mark relates to a future framework in development.
Can my organisation contribute?
Yes. Send a question, observation, proposed correction or relevant evidence to Mark. Where possible, identify the document and section you are referring to.
Terms used in the framework
- Authorised access
- Access permitted by the person or organisation responsible for the property.
- Access signalling
- Information people may infer from an access point’s appearance, position or use.
- Residual risk
- The risk that remains after an arrangement and its controls have been considered.
Contact
Discuss the framework.
For research enquiries, organisational reviews, collaboration or feedback on Disguised Security Technology™, contact Mark Cowie.
Mark Cowie
Originator of DST™ · Founder, KeySpot Security Ltd