Complex sentence: Cryer encouraged Smithy to pursue his ambition to become an armed police officer, and, with Bob as his sponsor and having given him the highest possible grading, Smithy submitted his SO19 application.
Split into simpler sentences: Cryer encouraged Smithy to pursue his ambition to become an armed police officer. With Bob as his sponsor and having given him the highest possible grading Smithy submitted his SO19 application.