What is the law on costs in personal injury cases?

First, dealing with the issue of costs, both counsel are in an agreement that the law in this regard is set out in Christen v. McKenzie, 2013 BCSC 1317. At paragraphs 34 through 36 the court states:

The wording of Rule 15-1(15) permits the court considerable discretion to order costs other than as set out therein. The comments of Harvey J. in Gill v. Widjaja at para. 42 reinforce the wide discretion of the registrars when assessing costs in fast track actions. The rough and ready approach does not require a detailed parsing of what has occurred. Nor is the rough and ready approach necessarily to be tied to the timeline of steps usually taken prior to trial.