I wouldn't know. I didn't fill out this persons mortgage application. When were self certs banned, they have had that mortgage for ten of fifteen years.
Besides there was a report on Radio 4 the other day about shady companies arranging fake payslips to get spousal visas. Look it up on iplayer, these companies advertise on gumtree.
@Stanley Road
Are you that naive that you don't think indigenous Brits don't avoid tax when they can? Most people avoid tax if they can.
You implied that Poles were paying tax, hence my comment.
I work in the construction industry too and I have never heard a single complaint of a problem with Polish builders undercutting the market from indigenous Brit builders.