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The High Court in Pretoria will hear an urgent appeal for medical parole on behalf of Clive Derby-Lewis on Tuesday.
Front National spokesperson, Francois Cloete says the legal representatives will argue that administrative incompetence on the part of the department of correctional services is the root cause of the rapid decline in the health condition of Derby-Lewis.
The 78-year old was convicted of conspiring to kill SA Communist Party general secretary Chris Hani by providing the gun Polish immigrant Janusz Walus used to kill him in the driveway of his home in Boksburg, on the East Rand, in April 1993.
Derby-Lewis has been diagnosed with lung cancer and has made various bids for parole since June 2010.
Cloete says he is currently the world’s oldest political prisoner, and has already served 22 years of a life sentence.
In October, Derby-Lewis's lawyer Marius Coertze said he remained "hopeful" the application could be granted.
