In this April 8, 2020, file photo, police officers check documents of a woman to ensure she is complying with a self-isolation regime due to the coronavirus in Moscow, Russia. A smartphone app designed to track Moscow's quarantined patients was rolled out by city officials in early April, but complaints about it have mushroomed, with users saying the software is full of glitches and has imposed unwarranted fines on them. (Photo by Pavel Golovkin/AP Photo)
