I have just gotten a Spouse Visa for my wife for the first time(I’m a Malaysian). The immigration officer mentioned something about some officers will be visiting us at home unannounced to check if our marriage is legit or not. Is this true and if it is, what are they actually checking and what are they gonna ask. Also, what if during that time, the both of us are not at home when the officers arrive? Do we ‘fail’ to continue with the Visa?

Once all the documents were submitted, there's a 30 working day wait for the result. On the 29th day I called the Immigration department and enquired about the status and it was approved. So, roughly a month is all it takes.