A Polish national has been jailed for six years for exploiting workers and people trafficking.
Siwak was convicted of eight offences of exploiting four Polish workers who were enticed into coming to the United Kingdom to work.
He was also convicted of four counts of forcing a person to perform forced labour and four counts of human trafficking.
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Wilshire police appeal for driver to contact them
Three men have been arrested on suspicion of firearms offences following a National Crime Agency operation in Hailsham, East Sussex.
Both men were fatally injured in the smash, which happened at around midday.