public static void validateTourist(Tourist tourist) throws TechnicalException {
        if (tourist == null) {
            throw new TechnicalException(MSG_ERR_NULL_ENTITY);
        }
        validateFIO(tourist.getFirstName());
        validateFIO(tourist.getMiddleName());
        validateFIO(tourist.getLastName());
        validatePassport(tourist.getPassport());
    }