def extract_and_validate_item_description(form):
    """
    Returns the value and validaton error of the
    item description contained in the form
    :rtype: (String, String)
    """
    description = form.get('description')
    description_error = None

    if not description:
        description_error = 'Description is required'
    elif len(description) < 2 or len(description) > 80:
        description_error = 'Description must be between 2 and 250 characters'

    return description, description_error