The smart phone market is growing higher and higher. With the drastic changes in technology, smart phones are becoming targets of criminals. Because of the fact that most of the people are completely addicted to the mobile devices to do our daily tasks, ranging from setting up a reminder to wish our dear ones well on special occasions, to online banking transactions, mobile devices contain a lot of sensitive data which is of an investigator’s interest. As Android is one of the leading smart phone operating systems, it it is important to have knowledge of Android forensics.Android forensics is different from regular disk forensics because of various reasons. It supports various file systems which are specific to Android. We may look for the following data on Android devices: SMS, MMS, emails, call logs, contacts, photos, calendars, notes, browser history, GPS locations, passwords, data stored on SD cards, etc.It is important to understand file systems, directory structures, and how and where the data is stored on the devices before getting into actual forensics.