Submission are your closing argument(s). This is your chance to submit why you should not be found guilty.
It is not an opportunity to repeat the evidence, although you can refer to it.
You may for example, say something like “Your worship, I ask you to accept my evidence where it differs from the officer for the following reasons:” and the proceed to explain why you should be believed, or why your evidence is capable of belief, etc.
This is YOUR opportunity to explain your case. Use the evidence that is before the court to your advantage. Point out problems in the prosecutions case, point out all the reasons why you should be acquitted.