Which bit of "zero tolerance" don't you understand?
The Scottish Government's zero-tolerance policy towards medical staff who don't wash their hands is a strange beast. A bit like the Haggis, which has three legs, two long ones on the downhill side and one short one on the up-hill side.
Because it doesn't appear to be zero-tolerance at all, as people will be warned several times that they're being naughty before being "disciplined". Ooh, nurse, discipline please! In any case, the policy appears to be largely unnecessary. The previous target was easily met significantly ahead of schedule, demonstrating that there wasn't a major problem in the first place. So it was just an excuse to piss more taxpayers' money up the wall on promotional materials, monitoring staff, managers for the monitors, and so on, and to make the Scottish Government look good in the press.