Sechaba wrote a bequeathung

(a) Sechaba wrote a will bequeathing his house to his wife Milly. After a fight, he writes a new will bequeathing his property to his mistress Anna. In his new will, he does not mention his old will. Sechaba dies with both wills still existing. With the aid of case law, discuss the effect of two wills with reference to Botswana.

(b) Sechaba wrote a will bequeathing his house to his wife Milly. After a fight, he burns the will in the presence of his wife. A copy of his will remains at his lawyer's office. With the aid of case law, discuss the effect of Sechaba's actions with reference to Botswana. [10 marks]