Derbyshire Alert is a free community messaging service that allows the force, Neighbourhood Watch and other key partners to distribute messages concerning community safety to the public quickly and effectively.
Alerts are mainly sent by email but people can also choose to receive them via text or a voice message.
To register online with this service visit www.derbyshirealert.co.uk|, or contact your local Community Information officer on 101.
It is designed so users who sign up to the system can choose what types of information they receive and when; concerning local crime, crime prevention, community events and good news to the public.
There are already more than 20,700 residents, business and other partner agencies registered on the system.