Jones arrives at court to give evidence

The Toowoomba-based Wagner family is suing Alan Jones over comments he made in 2014 and 2015

Talkback host Alan Jones has arrived at the Brisbane Supreme Court to give evidence in his defamation trial.

The Toowoomba-based Wagner brothers are suing the radio broadcaster, Harbour Radio, 4BC and journalist Nick Cater over 32 broadcasts and reports in 2014 and 2015.

The Wagners allege they were accused of the deaths of 12 people in the town of Grantham during the 2011 Queensland floods, when one of the walls of the Lockyer Valley quarry they owned collapsed.