What is the Shariah ruling on gelatine?

What is the Shariah ruling on gelatine? It eludes logical comprehension that many halaal certifying bodies rule as halaal gelatine derived from non-halaal animals in their products. In the event that products containing gelatine derived from non-halaal animals are not approved by halaal certifying bodies whose views defer, then manufacturers simply have their products certified by any one of the other halaal certifying bodies who do grant halaal status to products containing gelatine derived from non-halaal animals. And manufacturers laugh all the way to the bank! But what actually is the Shariah ruling? The halaal certifying bodies concerned aver that the gelatine from non-halaal animals undergoes a metamorphosis when processed and becomes halaal just as soap containing processed ingredients from non-halaal animals is deemed halaal.