Hot desiring usually occurs when there aren’t enough desks for all and not everyone is in every day.
In this scenario, an individual simply cannot keep their stuff on the desk…it is hogging space that others need.
However, if you’re running a system that is neither one thing nor another, it’s more tricky to enforce. If everyone’s in most or all of the time and have their own desk, clear desk policy is quite tricky to enforce, unless you’re prepared to be rigorous about it every day for a long period. Without enforcement, people who sit at the same desk every day will quickly start leaving stuff out.
So, it sounds like you need to decide if you are properly hotdesking. If so, it’s easy to explain and understand because anyone leaving stuff out is hindering others who need workspace. If you just want clear desk, then you need to do more than send an email or have a word to say that’s the system. You’ll have to check everyone’s on a daily basis for a good period.
Team members are often awkward about these kind of things. It’s the managers job to manage them and to manage them both humanely (recognising some people find this kind of thing difficult, but also to make it happen)
And to those who don’t like these kind of policies, well hot decking is fairly easy to understand…if there aren’t enough desks, you simply can’t keep one for yourself and leave others without a workspace when you’re not there. And for clear desk policy, it’s just a case of getting used to a different way of working. You need to be oriovided with a locker or similar to keep your stuff, and again, ther are good reasons behind these policies such as confidentiality.