Rude Police Officers

Yesterday night around about 22h00 I heard some noise in my house while sleeping, I woke up to check what was happening. I requested them to soften their voices as there is a newborn baby sleeping & a 10 year old child. There was a complaint from family friends about my brother & their son. I listen to the conversation. The agreement was taken that the complainant to open a case. They left after few minutes they came back the Seargeant Munyai & Constable Baisitse requested to check the house. I agreed and told them they can check anywhere in the house but they must make sure they are not waking the new born baby (1 month old), they insist to check in the room where the newborn baby is, I agreed & told them they mustn't make noise or leave us with a crying baby, they didn't want to do their check as agreed but Sergeant Munyai was rude to me. She is loud when responding to my questions as if she is fighting. And she doesn't have listening skills. Also when you enter someone's house or premises you introduce yourself, you don't talk anyhow, I am also a civil servant like them, they must respect people. What are Batho Pele principles for? also both suspects supposed to be quesione