Aw come on !
Merseyside police get sent a photo of a parcel being unwrapped from Mx Disgusted of Tunbridge Wells. Merseyside Police are only told that the stickers are weapons of mass destruction that will blow up in (location unspecified) by (persons unknown) at (time and date to be confirmed) and it's something that they need to (prevent? investigate? alert all other police forces?)
By now Ms Disgusted will have a received a DM "Please go to your nearest police station, preferably in Cheshire or Greater Manchester, and tell them more."