Under section 30(1) of the Constitution, therefore, the right to life, although fully guaranteed is nevertheless subject to the execution of a death sentence of a court of law in respect of a criminal offence of which one has been found guilty in Nigeria. The qualifying word, save, used in section 30(1) seems to me to be the unmistakable key to the construction of that provision. In my view it is plain that the 1979 Constitution can by no stretch of the imagination be said to have proscribed or outlawed the death penalty. On the contrary, section 30(1) of the Constitution permits it in the clearest possible terms, so long as it is inflicted pursuant to the sentence of a court of law in Nigeria in a criminal offence. In other words, section 30(1) of the Constitution recognises the death penalty as a form of punishment but only on the condition that it is in execution of the sentence of a court of law in a criminal offence of which an accused person has been found guilty in Nigeria. The plain meaning of this section of the Constitution cannot be derogated from in the absence of any ambiguity whatsoever. It simply guarantees and protects the right to life. But it also recognises deprivation of life so long as it is pursuant to the execution of the sentence of a court in a criminal offence of which the accused has been found guilty in Nigeria.
— Iguh JSC. Onuoha v State (1998) – SC. 24/1996