THE POLICE CAN GET A WARRANT TO MAKE YOUR INTERNET SERVICE PROVIDER GIVE UP YOUR CONNECTION LOGS. SINCE PRIVATE BROWSING MODE DOESN'T HIDE ANYTHING FROM THE ISP, THEY WILL SEE WHAT IPS YOU WERE CONNECTED TO AND WHEN. SO, EVEN IF YOU USE INCOGNITO, THE FBI CAN STILL SEE YOUR INCOGNITO HISTORY, TILL WE MEET AGAIN!