I have my granny at home who is quite aged. When everyone leaves to the offices, she is alone at home. Last day a news was reported in the newspaper that a granny was attacked by the burglars in the midst of a burglary. Since I don't want such an incident to happen at home, I want to safeguard my house as well as my grandma. I'm . For that what is the primary step that I must do? Feel free to share your ideas.