investigate ____

[_Annika_]

As the title suggests, my teen sim had an autonomous interaction with the computer to investigate ____. It does not appear in the user-directed interactions available. What is she up to?!

[Playalot]

Sounds like a glitch! Reminds me of what certain items made by now dead sims, are labeled.  Like a "painting made by ___" etc.
How strange!

[stitching_JA]

I also think it's a glitch.  "Investigate ____" sounds like an interaction that becomes available to those in the secret agent career eventually.  One of the promotion tasks at level 7 is to investigate 3 sims, and eventually you get a notification with some information about the sim you chose to investigate or a note that you didn't learn anything about them.