A Scottish politician's request for an official visit to Dungavel House Immigration Removal Centre in South Lanarkshire has been rejected by the Home Office.
A human rights lawyer has called on the Scottish Government to 'demand answers' after it emerged that 537 people were held in police cells in Scotland under immigration law.
A private prison firm paying asylum seekers held at Dungavel detention centre £1 an hour made nearly £1m in profit last year.
Nearly 300 extremely vulnerable asylum seekers held in Dungavel by Home Office despite doctors expressing fears over their well-being.
Government officials are increasingly challenging independent evidence of torture, raising fears genuine asylum seekers could be sent home.