Serena Johnson owns and manages a Beauty Salon in Hornsby. Serena accepts only cash payments from her customers. Any of her staff can collect payments from her customers, and put the collected cash into the cash register. As the business closes late and opens early daily, there is no time to count the money in the cash register. The cash register is accessible by all staff members at all times. Customers are only given a receipt if they ask for one, but this is not encouraged. Also, any delivery of goods is always paid on delivery in cash and the money to pay for the goods delivered is taken from the cash register. The total from the cash register is produced each month for the business's bookkeeper to prepare the business activity statements. Required: Review the internal control environment in Beauty Salon by reference to the five principles of internal control. Word limit: maximum 250 words