We got stuff going missing at work and suspect out new cleaner!

It's only small things such as a tap and die set, expensive looking pens, pliers, brand new mouse in box, other stuff!

Also drawers and cupboards are being rummaged through! (we done the old taping a hair on the side of stuff so when its opened the hair breaks ) also i found that a really old tandem laptop bag besides my desk has been rummaged throught and left open!

I wouldnt mind too much but the pliers are mine and i use them every ****ing day!

Anyway we had a plan of setting up my laptop and web cam in a locked cage at work so u can't see the camera! Only thing is i aint got that big HD to record loadsa video so was wondering if any of u can suggest any software to use to capture pictures preferably when summat moves on the picture?!?!? or would it need a motion detector!?! alternatively software to take a picture every n seconds would probably do!

cheers lads!!! i want my ****ing pliers back

Lemaru