For 2 or 3 staff surely it just makes sense to tell them you known they're being cheeky willys and to behave themselves before you start handing out warnings and things rather than dropping a large amount of time and money on this.
Sorry should have given a bit more depth to the story. There are 2-3 main culprits, but their activities have given rise to an almost general acceptance among the rest of the staff that they can pretty much come and go as they please. So if you pulled any 1 individual they could point out 'but so so has been late' etc. Could just end up in a whole mess to be honest.
regarding costs and time, I'd say we'll most likely go for a ~500 quid system - so no real big outlay financially and time wise we'll the 'research' let's me browse the ocuk forums without question so I'm happy with that!
