Who is Mma Florence Peko from Tears of the Giraffe and what is their importance?

Mma Florence Peko is the maid of Mr. J.L.B. Matekoni. She entertains her male friends at her employer's house when he is out. She will lose her job when Mr. J.L.B. Matekoni marries Mma Ramotswe and plots to prevent the marriage. She plots to have a gun planted in Mma Ramotswe's house but is herself turned in to the police for having a gun and is arrested.