Thanks for the feedback NYCAPA. The case itself isn't timed, but yes there is a 48hr (48minutes real time) counter after submitting an incorrect conviction. In my head it injects a bit of stress and urgency into the case, though 48 minutes is still quite substantial time to dig further into the case an resubmit a conviction. I'm still collecting play test feedback, so i'm sure a number of things (like this) will be addressed for the next patch. Thanks so much for the feedback and come back for case 2, it's gonna be naughty.
I should also mention that Boz really kicks into gear once that 48hr timer activates (only on an incorrect conviction) She will give some great advice on areas of the database to dig into - she tracks your searches and can really help to guide you towards the answer, if you are ever stuck. There was a big patch last night that massively improved her tracking of the players tasks and queries run. I also removed the game over condition on second incorrect submission. So you can now make unlimited convictions until you find the killer.