What is the International Security Register?

The ISR is a highly secure and confidential database. It is accredited to BS ISO/IEC 27001:2017 the very latest and highest level of database management, owned and operated exclusively by Retainagroup Ltd, the UK’s leading supplier of security marking and registration systems to the Motor Industry for over 30 years.
The 24/7/365 manned ISR contact line has no answer machines or recorded messages! The service provides an all year round, immediate verification service for members of the public, police, motor dealers and anyone needing to verify vehicle's credentials.
https://www.retainagroup.com/isr/
How does the system operate?
The system is based on three simple but highly effective procedures – Marking, Registration and Verification.
The windows and/or parts of your vehicle are etched with an overtly visible, permanent, unique security code and the 24/7/365 ISR contact telephone number.
Details of your vehicle, together with the security code and ownership information, will be recorded on the ISR. Confirmation of registration will be sent to you.
Immediate verification of your vehicle’s identity and ownership can be provided at any time of day or night by just one call to the ISR.
Is it possible for anyone else to obtain my name or any other details through the Register?
No. If asked questions about your vehicle by anyone other than yourself, ISR operators will only confirm whether the information quoted to them corresponds to the details held on the ISR.
If there is any doubt about an enquiry, an ISR operator will telephone you, the registered owner or keeper to clarify the situation. Operators may recommend that an enquirer verifies information with the person selling a marked and registered vehicle.