A body that runs courts in England and Wales has been accused of an IT bug 'cover up' after a malfunction caused evidence to go missing, be overwritten or appear lost.

An internal report leaked to the BBC found the body took several years to react to the malfunction.

The bug was part of a case-management software used by HM Courts & Tribunals Service (HMCTS), the Ministry of Justice (MoJ) agency that administers courts in England and Wales and tribunals throughout the UK.

The software is used to track cases and manage evidence before courts and is used by judges, lawyers, case workers and members of the public - it is known as Judicial Case Manager, MyHMCTS or CCD.

Sources within HMCTS say the bug led to judges in civil, family and tribunal courts making rulings on cases where evidence was incomplete.