The audit was called for after it emerged some computer records on callouts by the out-of-hours doctors service were falsified to make the service appear faster.

BBC: Serco vehicle

The company has hired Protiviti, an internal audit and consulting firm, and Guidance Software and Data Forte, computer forensics firms.

FORBES: Morning Tech Wrap: Sony, Apple, RIM

The report recommends that the IRS analyze IRS employee noncompliance trends gleaned from self-reported cases and audit cases to help uncover more sophisticated noncompliance than that detected by the computer matching.

FORBES: IRS Employees In Tax Trouble

But as millions of procrastinators scramble to meet Monday's deadline to file their taxes, the agency is running every tax return through a confidential computer program to determine the chances of collecting more money from an audit.

WSJ: AP Exclusive: Likely tax cheats flock South, West

For example, the National Air Traffic Service, which has presided over one of the worst computer-procurement failures at its much-delayed Swanwick control centre, is outside parliamentary audit.

ECONOMIST: Government

Despite the problems with new NHS computer networks and the well-publicised difficulties at the Child Support Agency, the National Audit Office points to 24 examples of good practice.

BBC: Hand on computer mouse

The Scottish Parliament's public audit committee suggested samples of patient records were tested to make sure the use of social unavailability codes on the NHS computer system was "appropriate".

BBC: MSPs call for more accurate NHS waiting time logs