One alleged reason that the police are so quick to take action against anyone who uses a cell phone to make a video recording of their activities is because the cell phone might actually be a weapon. And there are two reported incidents of firearms that are disguised as cell phones.
The first was discovered in 2000. The second was discovered in 2008. Their existence was verified by Snopes. There are a few problems with the reports though.
First, the only reports of these disguised firearms come from reports of the police finding them. There are no reports of anyone ever actually using these firearms. There is never even any follow-up to the stories, such as trials for those the police seized these firearms from.
Second, although the design of cell phones has changed during the eight years between the two stories, the pictures are nearly identical to the point where it is very possible that they are pictures of the same firearm. If they are not the same firearm then they were manufactured from identical cell phones by the same person and function the same way.
Third, there are only two incidents in eight years. One report could mean this is an isolated incident of one person trying to disguise a gun. More than one report means these are being manufactured in some bulk. But if they are being manufactured in that way why are there only two incidents?
To believe the official version of events it is necessary to believe that the government never runs any false flag operations. On the other hand, to believe that this is a set up by the government to give police an excuse to confiscate any cell phones (that coincidentally have cameras) is to be a conspiracy theorist. Never mind that when cell phones are returned the videos have been deleted.