I also read the police will not enforce it.
Some places have police enforcement, others don't.
Scotland Police chiefs refuse to enforce smoking ban
"And yesterday, the Association of Scottish Police Superintendents (ASPS) told The Scotsman that using beat officers to chase smokers would be an "ineffective" use of resources.
The warning opens the way for new teams of "smoking police" employed by local authorities or health boards, who will target pubs and clubs once a ban is imposed. "
In other words, instead of making this part of the purview of the regular Police, they will have a dedicated 'smoking police' who will do absolutely nothing else other than enforce this ban. As a result, the actual enforcement will likely be dramatically greater than if the regular police had integrated this into their law enforcement duties.