The fact that you are a detective and the SDPD doesn't have the technology doesn't mean that somewhere in this world it doesn't exist, whether here in North America or other continents.
Many years ago when I was a child, I used to read the Sunday Comics. I knew beyond doubt that Det. Dick Tracy could never talk to Hdq. In his wrist radio. FBI, Secret Service do today and as well as their cell phones. I was fascinated by the drawings of Cars of the Future. It was laughable! We've been driving them since the 90s. Laser beams and Capt. Midnight space rockets were a joke. Deep space was the moon...not other solar systems.....but Look at where we are going. Technology takes leaps and bounds as we sleep. Before new computer technology hits the stores..it's outdated. Look at all of the amazing things criminal hackers and productive brilliant minds do every day. I don't know what is available on the hush hush today in technology, but one thing that I have learned as a 30 year (Retired) HS And College Prof. Is that there is absolute truth in the theory that anything the human mind can conceive, can be done. Don't prejudge.
They have this pathetic application on the market, where they can call your number, let it ring just one time that allows them to retrieve all your contacts and all your text messages. so there you have it and you heard it through the grape vine.
Its a telemarketer that wants to look up your skirt so they can attempt to sell you stuff.
Got a call from this number. Never left a message. Called it back and said by recording, "Hi this is Lisa from Reward redemption. So I guess the number will be rejected.