Preheat the oven to 190 degrees C. Grease baking trays.
In a medium bowl, cream together the shortening and sugar until smooth. Beat in the eggs one at a time then stir in the milk. Combine the flour, bicarb soda, salt and cinnamon, gradually stir into the creamed mixture. Add the raisins and quick oats; mix until just combined. Drop by rounded spoonfuls onto the prepared baking tray.
Bake for 8 to 10 minutes in the preheated oven. Allow biscuits to cool on baking tray for 5 minutes before removing to a wire rack to cool completely.