From what I understood Whatsapp does regularly work with the police. The contents is encrypted. But you can easily monitor who communicates with whom. So if one

From what I understood Whatsapp does regularly work with the police. The contents is encrypted. But you can easily monitor who communicates with whom. So if one person is unwilling, you can check if the other is willing. I find it more worrisome that going after one person is more important than the privacy of a huge group.