Nice game. In fact, if you use only log system, you can find the path of every one and find the solution. Find the solution with The CCTV is possible but more challenging. I have some issue with the music. Game is well presented, (but I resolved it with a whiteboard, more straightforward).
The main criticism I would do is that there is an obvious way to solve it (even if it takes time). Perhaps a way to circumvent this, is to add some other notes on the board that break rules, like an issue with a door that makesomeone occupy a room during 2 hours instead off one. A black out of log system during 1 hour. A CCTV that was unplugged at this hour, etc..
Overall that reminds be a bit of some Cluedo (aka Clue). Was fun.
If you are interested in this kind of game, play https://felisarmis.itch.io/red-card ! (was made in a month, not a week, and no re-playability at all)