# Commission Decision of 22 September 2006 on amending the Sirene Manual (2006/758/EC), Division 8.1.1: Checking for multiple alerts on a vehicle

Extent: E+W+S+N.I.

The mandatory identity description elements for alerts on a vehicle are:
the registration/number plate, and/or
the serial number.
Both numbers may feature in the SIS.
Checks for multiple alerts are made by comparing numbers. If, when entering a new alert, it is found that the same serial number and/or registration plate number already exist in the SIS, it is assumed that the new alert will result in multiple alerts on the same vehicle. However, this method of verification is effective only where the description elements used are the same and comparison is therefore not always possible.
The Sirene bureau shall draw the national users' attention to the problems which may arise where only one of the numbers has been compared a positive response does not mean automatically that there is a hit, and a negative response does not mean that there is no alert on the vehicle.
The identity description elements used for establishing whether two vehicle entries are identical are detailed in Annex 6 of this manual.
The consultation procedures to be adopted by the Sirene bureaux for vehicles are the same as for persons.

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Source: https://www.legislation.gov.uk/eudn/2006/758/annex/1/division/8/division/8.1/division/8.1.1 (the official version)
Page: https://openlegislation.uk/eu-decision-2006-758/annex-1/division-8/division-8.1/division-8.1.1
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.