One of the criteria we use to decide whether to open a new visa application centre is the number of applications from applicants who have to provide their biometric data. We regularly review this number, or volume. If there is an increase in volume in a certain region of the world, or in a country where we don't have a visa application centre, we will ask, in consultation with the service provider, to open a visa application centre. It's a business decision, and that's why we talk about volume. We want to make sure that it's viable for our provider to offer this service, which will be funded by the clients who have to provide their biometric data.
Security is another criterion we use. Sometimes it's not possible to open a visa application centre in a given country for security reasons, if it's dangerous to open it, or we're not in a position to do so.
So it's security and cost considerations that determine the choice.