In Kohana, can you trigger a 404 error?

Question

I have a controller called articles, which creates the articles model which gets the relevant data from the database.

I want to, if the method I call return

Answer 1

Kohana / General / Error-handling / Kohana_404_Exception

/**
 * @param  string  URL of page
 * @param  string  custom error template
 */
throw new Kohana_404_Exception([string $page [, string $template]]);