PICTURES! Big Brother's Sara takes on a lie detector

SARA TASK

Here's a sneak peek of this evening's Big Brother 2012 highlights, as Sara takes on a lie detector!

The Scottish housemate is tasked with truthfully answering some tough questions, as her housemates watch on and are asked to decide whether or not she's telling the truth.

Meanwhile, Luke tries on his potential eviction outfit while Becky and Scott share a bath together!

There's dancing from Adam and Deana, while Becky and Ashleigh 'bond' with some play fighting...

The latest Big Brother show airs tonight on Channel 5 from 9PM.

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