A Data Protection Impact Assessment (DPIA) is one of the ways to find out what privacy risks people face when information is collected, used, stored, or shared about them. This helps the London Borough of Barnet find issues so that risks can be taken away or lowered to a level that is acceptable. It also cuts down on privacy breaches and complaints that could hurt the Council's reputation or lead to action by the Information Commissioner (the government watchdog).
The London Borough of Barnet makes DPIAs public in with its Data Charter and the 2018 Data Protection Act and UK GDPR.