1. The control principle related to not having the same person approach an invoice and sign the check is known as 2. in terms of internal controls aimed at preventing and detecting fraud, an example of human resource controls might be

- requiring a doctors note from an employee when more than 3 sick days in a row are taken

requiring employees to take two consecutive weeks of vacation

requiring employees to have extended vacations approved at least one month in advance

requiring employees to fill out a report every time they take a sick day