Our Gratitude Tree website is launched

Gratitude Tree is a digital ‘forest of thanks’ that was developed to allow people to share their appreciation and positivity during, and following, the Covid-19 global pandemic. A series of psychological studies have demonstrated the positive impact of gratitude on people’s wellbeing andhealth. People could add a tree or a leaf and share it via

Building trust in digital policing

We report on a review of policing apps where we examined whether they sought to meet community needs and policing visions.  We systematically scoped 240 existing online citizen-police and relevant third-party communication apps and found that that 82% required registration or login details, 55% of those with a reporting mechanism allowed for anonymous reporting, and


This year’s ACM CHI Conference on Human Factors in Computing Systems includes three publications resulting from our early work on the Citizen Forensics project. These are a Late Breaking Work paper reporting some preliminary findings on designing technologies for community policing; a review of community policing apps developed for use in Asian countries (Asian CHI


Arosha Bandara has been invited to a round table discussion on “Privacy Metrics” by the Technology Advisory Panel (TAP) of the Investigatory Powers Commissioner (IPCO). The meeting will take place at St. John’s College, Cambridge and will focus on “…the availability and development of techniques to use investigatory powers while minimising interference with privacy.”