Rangarirai Mutapuri N.O. v Mpakeyi Mutungwazi N.O.

The plaintiff was appointed curator ad litem for Ezekiel Mutapuri on 30 June 2004. Ezekiel had entered into an agreement of sale with Kingdom Mutungwazi (now deceased) in December 2003 in respect of immovable property called Lot 3 of Zuvanyika measuring 5.3523 Morgen including a 16-room compound. The plaintiff contended that at the time of entering into the agreement, Ezekiel was mentally handicapped and incapable of appreciating the nature and import of the agreement. Evidence showed that Ezekiel exhibited signs of mental instability from age 3, engaged in disturbing behaviors including playing with his own stool, struggled in school, lived on the streets, abused drugs (marijuana, glue, alcohol) from Grade 5, and attacked family members. Multiple psychiatrists (Dr. Chibanda, Dr. Nhiwatiwa, Dr. Shamhu) examined Ezekiel in 2004 and found him suffering from paranoid psychosis, possibly schizophrenia, with incoherent speech, auditory hallucinations, and inability to give informed consent. The plaintiff sought to have the sale agreement declared null and void. The defendant, executor of Kingdom Mutungwazi's estate, had no personal knowledge of the circumstances surrounding the agreement's execution and only knew Ezekiel from when he borrowed money from her.

• Whether at the time of the agreement of sale in December 2003, Ezekiel Mutapuri was of such mental health as to appreciate the nature of the transaction
• Whether a contract entered into by a person lacking mental capacity should be declared null and void
• What standard of proof applies in determining mental incapacity at the time of contracting

1. The purported agreement of sale concluded between Kingdom Mutungwazi and Ezekiel Mutapuri is declared null and void. 2. The plaintiff is directed to refund to the defendant the total amount paid by Kingdom Mutungwazi. 3. The defendant shall bear the costs of suit.

A contract entered into by a person who lacks the mental capacity to appreciate the nature of the transaction is null and void. Mental incapacity at the time of contracting can be proved on a balance of probabilities through a combination of evidence from family members regarding the person's historical mental state and behavior, together with expert medical evidence establishing chronic mental illness, even where the medical examinations occurred after the contract was concluded. Where such evidence indicates a very high probability that the person lacked mental capacity at the time of the transaction, the contract will be declared void.

The court noted with apparent disapproval that the defendant's legal representatives failed to file written closing submissions despite the court's direction, reminders from the Registrar (including one dated 25 August 2010), and a promise to remind counsel to do so. The court proceeded to judgment without those submissions. The court also observed that the defendant had no personal knowledge of the circumstances in which the agreement was executed and therefore could not counter the evidence adduced on behalf of the plaintiff, which appeared to influence the court's assessment of the evidence.

This case is significant in Zimbabwean contract law as it affirms the principle that contracts entered into by persons lacking mental capacity are void. It demonstrates the court's willingness to protect vulnerable persons from exploitation and the importance of mental capacity as a fundamental requirement for valid consent in contractual transactions. The case also illustrates the evidentiary approach courts take in determining retrospective mental capacity, accepting a combination of lay testimony from family members regarding historical behavior and expert medical evidence examining the person after the fact to establish chronic conditions that likely existed at the time of contracting. The appointment and role of a curator ad litem to protect the interests of mentally incapacitated persons is also highlighted.