Holiday and sickness absence: two sides of the same coin - sick workers must be allowed to defer holiday leave

You may need to amend sickness absence policies and procedures to take into account the new right. However, the possibility of abuse is obvious. 

So, consider revising your sickness absence procedures to require medical evidence of ill-health while on holiday, even for short-term absences. Consider also amending sick pay entitlement so that sickness during holiday is not covered above the statutory minimum.

Both these are difficult to implement. You should seek legal advice before doing so.