In all criminal and delinquency cases, juvenile fact-finding hearings under s. 48.31 and juvenile dispositional hearings involving a child victim or witness, as defined in s. 950.02, the court and the district attorney shall take appropriate action to ensure a speedy trial in order to minimize the length of time the child must endure the stress of the child’s involvement in the proceeding. In ruling on any motion or other request for a delay or continuance of proceedings, the court shall consider and give weight to any adverse impact the delay or continuance may have on the well-being of a child victim or witness.