A review of property purchases is underway. Officers involved in rail planning had bought homes near certain stations before their locations were made public. This has raised questions about the honesty of public officials. The government is examining data from 2007 to 2014 to determine if any wrongdoing occurred.

The investigation was prompted by a study that claimed to have found a statistical pattern. The government has updated the parliament on its progress, revealing that some public officers' purchases warrant further review.

Further details about the investigation and its findings are available from the source, including the government's response to the study's claims and the measures being taken to address concerns about public officials' conduct.