Are they pulling over passing Bentleys the peruse the phones of those inside? If one of these cops sees another cop passing, do they check their phone? Do they

Are they pulling over passing Bentleys the peruse the phones of those inside? If one of these cops sees another cop passing, do they check their phone? Do they go into the senate and check senator's phones? Do they go to the financial district and look at trader's phones for signs of insider trading? This is at least profiling or a discriminatory style of policing. They go to areas that have "those people" (whatever that means for this context) and do their policing there, avoiding the rich & powerful. It's also a digital strip search in the street. If this is a valid style of policing, why not just digitally search everyone's phones NSA-style? Could it be that NSA-style wouldn't be discriminatory enough (a rich person might get caught)? Could it be that the psychological effects on the policed population are one of the motivations?