Petition better protection when buying a home

Give back power to local authority with regards to building control etc, stop NHBC etc getting away with doing nothing to help homeowners when things go wrong, they were set up to support the homeowner against shoddy workmanship but are now an insurance company that only have the interest of the builder leaving the homeowner with nothing but a guarantee that isn't worth the paper it is written on. Apprently there is an agreement between the local authority and nhbc etc that when nhbc etc are responsible for building control etc they don't step on each each others toes, surely if there is a problem the local authority should be able to assist the homeowner.