Deposit scheme, gas certificate and electrical certificate in Scotland

I think all of these are legally required in Scotland. A friend has rented the same property for 3 years, he hasn't got any notification of where the deposit is held, no attendance by a gas safety inspector hence no copy of a gas safety certificate, no electrical inspection, no copy of an electrical safety certificate, and no PAT record for some white goods supplied.

The landlord is registered with the local authority. What is the legal position?

Regards