This document is a witness statement from Declan Heavey, the claimant in a claim against St Mungo's for breaching the UK's Data Protection Act. Heavey contends that St Mungo's failed to ensure the accuracy of action notes from two meetings and did not timely rectify errors in the notes when he challenged them, in violation of the DPA. The inaccurate notes caused Heavey distress and potentially threatened his housing, as he has a history of homelessness and health issues that could be exacerbated by losing housing. He is seeking damages from St Mungo's for its failure to properly handle his personal data.