The Block was recently rocked by one of the biggest cheating scandals in reality TV history.
And after being at the centre of the drama, contestants Josh and Luke Packham have called for a lie detector to be used during the show's finale.
The cheating saga began when someone allegedly broke into Scott's office and took a photo of a whiteboard which showed the series' filming schedule. It included the dates of each challenge, private tours and furniture consults.
Who's telling the truth? The Block 'will feature a lie detector test' during the finale following the show's cheating scandal involving Josh and Luke Packham a report in New Idea has stated. Here: Josh and Luke Packham on the series
'Who thinks we should all do a lie detector test at the end of the series to really find out who knew what,' the twins posted on Instagram.
They then added, 'Several teams would be quite worried!'
Meanwhile, New Idea claims there is 'growing concern' among the teams they could be subjected to the extreme measures.
'There's whispers production will force everyone to take a test to determine the truth,' a source