Here's the guidance from the UK College of Policing manual.
Three specific comments:
1. The diffusion system can be used to notify a specific country rather than a Green Notice that is available to all countries
2. Even for low risk offenders, if they are travelling to a high risk country that may be a factor that could trigger a notice
3. For SISII (within EU), anyone on the SOR is automatically classed as 'high risk' on ViSOR and SIS alterts are issued as standard. In theory, outside the EU a risk assessment should be done on an individual basis and the decision to use notices/diffusions should be proportionate i.e everyone on SOR isn't automatically classified as high risk by their PPU for non-EU travel.
Publication of green notices and diffusions regarding travelling sexual offenders
Home Office Circular 20/2001 sets out amendments to the Sex Offenders Act 1997 which allow more intrusive management of sex offenders, including notification of foreign travel.A Green Notice
is used for non-Schengen countries to provide warnings and intelligence about persons who have committed criminal offences and are likely to repeat these crimes in other countries. The decision to use these are on a case by case basis.The criteria for circulation of green notices include:
- For very high and high-risk sexual offenders – if the local force receives notification of foreign travel and considers dissemination of this information to other countries necessary and proportionate, they can submit a green notice application to the UK NCB accompanied by a form C risk assessment. The UK INTERPOL NCB will quality assure both documents before disseminating through INTERPOL channels, if appropriate.
- For medium-risk offenders – these are dealt with by way of diffusion where appropriate, or a green notice. Each will be judged on a case-by-case basis.
- For low-risk offenders – it is not usual practice to notify the country of destination or INTERPOL unless there is specific intelligence to warrant a diffusion or green notice, eg, the individual may be travelling to a high-risk country.
The final decision in relation to circulating INTERPOL diffusions or colour notices sits with the NCB which, in liaison with the subject’s offender manager and the force’s ILO
, consider which notification should be used on a case-by-case basis.