The defendant will open the App installed on his/her phone and click on the "Check-In" button. The defendant will then take a selfie and click on the "Send Check-In Details" button. This will update the defendant’s Check-In log in Bailbooks and capture his/her GPS location. Bailbooks users can view their defendants "Check-In Location History", which will allow them to determine each location from which a defendant has checked in. This is a powerful tool to identify a defendant’s whereabouts and provide valuable information to assist a bounty hunter if needed.