"It is the duty of the prison authorities to ensure the health and safety of those under their custody, a duty made onerous in cases where one is held without trial," he said in a statement today.
Uthayakumar is said to have been deprived of his medicine for the past month despite repeated requests to the director of Kamunting Prison where he is held.Inhumane treatment
He was admitted to the Taiping hospital in Perak on April 7 after his sugar level rose to more than three times the normal level.
Discharged from the hospital on April 10 and taken back to the detention centre, his family members insisted that he was still unwell.
Meanwhile, social reform group Aliran expressed shock at the "inhumane" treatment of Uthayakumar.
"Aliran wishes to emphasise that a detainee does not forfeit his right to medical care under whatever circumstance," said its president P Ramakrishnan in a statement.
"As a human being, he is entitled to receive medical attention like any other Malaysian and his family has a right to be notified when a detainee is hospitalised. This is something very basic in a civilised society," he stressed.
"Kamunting authorities need to be given an urgent course on human decency so that they will react as human beings and treat others under their care with dignity and compassion.
"So far their conduct has been disgraceful, deserving condemnation from the civilised international community," he added.
