Parties to a lawsuit generally have an absolute right to nonsuit (dismiss) their own claims for relief at any time during the litigation until they have introduced all evidence other than rebuttal evidence at trial.
In Idaho, parties to a lawsuit do indeed have the right to voluntarily dismiss their own claims, which is often referred to as a 'nonsuit.' This right is typically absolute until a certain point in the litigation process. According to Rule 41(a) of the Idaho Rules of Civil Procedure, a plaintiff may dismiss an action without a court order by filing a notice of dismissal before the opposing party serves either an answer or a motion for summary judgment. Alternatively, the plaintiff can dismiss the action with a court order by filing a stipulation of dismissal signed by all parties who have appeared in the case. However, once the plaintiff has begun to present their case by introducing all evidence other than rebuttal evidence at trial, the right to nonsuit is no longer absolute. At that stage, the dismissal of the case would require the approval of the court, and the court may impose terms and conditions as it deems proper.