Certificate of our film

Our film would have the rating of 15 or 18 because of the content involved
i.e a violent murder at the start of the film.
After a varied amount of discussion between the group, and focused on the material within the whole film production, we have came to the conclusion that it will be Certificate 15.
We have decided this because the amount of voilence within the film, it may not be viewed much, but displays scenes of a graphic and voilent nature, which pushes the age barrier from PG to 15, along with the language used, would not be suitable for younger people, especially children.