The Intercept referred to a report titled "Google Timelines: Location Investigations Involving Android Devices" that was recently circulated to law enforcement.
"The expansion of Google’s Timeline feature, launched in July 2015, allows investigators to request detailed information about where someone has been — down to the longitude and latitude — over the course of years," the Intercept said.
It added that location data is only stored in users’ Google accounts if they enable the feature and that users often forget to turn the feature off even though they can do so.
Commenting on the feature, the Interceptor pointed out that it potentially allows law enforcement "to access a treasure trove of data about someone’s individual movement over the course of years."
The Intercept quoted the report as saying that investigators should bear in mind that Google retains a significant amount of other information about its users.
"Consider including Gmail, photos and videos, search history, contacts, applications, other connected devices, Google Voice and Google Wallet, if they are relevant to the investigation," the report said.
Google has repeatedly been criticized for reading users' personal correspondence, with the company responding with the argument that text is analyzed by bots, and that no third party is privy to any confidential user information.
Earlier this year, the Moscow City Court released the text of its decision to effectively ban Google from using its bots to analyze the personal email correspondence of Russian users.