log.debug("searchItemsByPoll maxResults " + maxResults);
//avoid null values
maxResults = maxResults == null ? this.MAX_RESULTS : maxResults;
final List<Poll> items = new ArrayList<Poll>();
if (period == null) {
throw new EnMeSearchException("search params required");
} else {
final SearchPeriods periodSelected = SearchPeriods
.getPeriodString(period);
if (periodSelected.equals(SearchPeriods.TWENTYFOURHOURS)) {
items.addAll(getFrontEndDao().getPollFrontEndLast24(start,