28
Do not take your device with you to official appointments - Smartphone, don't spy!
(smartphone-dont-spy.de)
Icon base by Lorc under CC BY 3.0 with modifications to add a gradient
They're allowed to search your phone if it is unlocked. Curiously, that includes first unlocking it by holding it up to your face or using other biometric data of yours. They can NOT force you to give them your PIN or password (edit: or force you to enter them yourself). Act accordingly.