def get_event_details(event):
    """Extract event image and timestamp - image with no tag will be tagged as latest.

    :param dict event: start container event dictionary.
    :return tuple: (container image, last use timestamp).
    """
    image = str(event['from'] if ":" in event['from'] else event['from'] + ":latest")
    timestamp = event['time']
    return image, timestamp