diff --git a/backend/src/main/java/uk/co/neviyn/observations/dao/ObservationDao.java b/backend/src/main/java/uk/co/neviyn/observations/dao/ObservationDao.java
index 241c04f..de07173 100644
--- a/backend/src/main/java/uk/co/neviyn/observations/dao/ObservationDao.java
+++ b/backend/src/main/java/uk/co/neviyn/observations/dao/ObservationDao.java
@@ -32,24 +32,49 @@ public class ObservationDao extends AbstractDAO<Observation> {
     return currentSession().createQuery("from Observation", Observation.class).list();
   }
 
+  public List<Observation> filteredList(Site site, Tutor tutor, DateTime startDate, DateTime endDate, String whom) {
+    final CriteriaBuilder builder = currentSession().getCriteriaBuilder();
+    CriteriaQuery<Observation> criteriaQuery = builder.createQuery(Observation.class);
+    Root<Observation> root = criteriaQuery.from(Observation.class);
+    List<Predicate> predicates = new ArrayList<>();
+    if (site != null) {
+      predicates.add(builder.equal(root.get("site"), site));
+    }
+    if (startDate != null) {
+      predicates.add(builder.greaterThanOrEqualTo(root.get("date"), startDate));
+    }
+    if (endDate != null) {
+      predicates.add(builder.lessThanOrEqualTo(root.get("date"), endDate));
+    }
+    if (whom != null) {
+      predicates.add(builder.equal(root.get("whom"), whom));
+    }
+    if (!predicates.isEmpty()) {
+      criteriaQuery.having(predicates.toArray(new Predicate[0]));
+    }
+    Query<Observation> query = currentSession().createQuery(criteriaQuery);
+    System.out.println(query.getQueryString());
+    return query.getResultList();
+  }
+
   /**
    * Generate the average observation stats with data constraints.
-   * @param site Restrict to a site.
-   * @param tutor Restrict to a tutor.
+   * 
+   * @param site      Restrict to a site.
+   * @param tutor     Restrict to a tutor.
    * @param startDate Restrict to after a certain date.
-   * @param endDate Restrict to before a certain date.
-   * @param whom Restrict to a particular person/group who was observed.
+   * @param endDate   Restrict to before a certain date.
+   * @param whom      Restrict to a particular person/group who was observed.
    * @return Average observation scores per day.
    */
   // TODO: Add tutor filter
-  public List<AverageStats> averageStats(Site site, Tutor tutor, DateTime startDate,
-                                         DateTime endDate, String whom) {
+  public List<AverageStats> averageStats(Site site, Tutor tutor, DateTime startDate, DateTime endDate, String whom) {
     CriteriaBuilder builder = currentSession().getCriteriaBuilder();
     CriteriaQuery<AverageStats> criteriaQuery = builder.createQuery(AverageStats.class);
     Root<Observation> root = criteriaQuery.from(Observation.class);
     criteriaQuery.multiselect(builder.avg(root.get("monitoring")), builder.avg(root.get("control")),
-        builder.avg(root.get("conservatism")), builder.avg(root.get("teamwork")),
-        builder.avg(root.get("knowledge")), root.get("date"));
+        builder.avg(root.get("conservatism")), builder.avg(root.get("teamwork")), builder.avg(root.get("knowledge")),
+        root.get("date"));
     criteriaQuery.groupBy(root.get("date"));
     List<Predicate> predicates = new ArrayList<>();
     if (site != null) {
@@ -64,7 +89,9 @@ public class ObservationDao extends AbstractDAO<Observation> {
     if (whom != null) {
       predicates.add(builder.equal(root.get("whom"), whom));
     }
-    criteriaQuery.having(predicates.toArray(new Predicate[0]));
+    if (!predicates.isEmpty()) {
+      criteriaQuery.having(predicates.toArray(new Predicate[0]));
+    }
     Query<AverageStats> query = currentSession().createQuery(criteriaQuery);
     System.out.println(query.getQueryString());
     return query.getResultList();
diff --git a/backend/src/main/java/uk/co/neviyn/observations/resources/ObservationResource.java b/backend/src/main/java/uk/co/neviyn/observations/resources/ObservationResource.java
index 8cdd347..50d19db 100644
--- a/backend/src/main/java/uk/co/neviyn/observations/resources/ObservationResource.java
+++ b/backend/src/main/java/uk/co/neviyn/observations/resources/ObservationResource.java
@@ -2,6 +2,7 @@ package uk.co.neviyn.observations.resources;
 
 import io.dropwizard.hibernate.UnitOfWork;
 import java.util.HashSet;
+import java.util.List;
 import java.util.Set;
 import javax.validation.constraints.NotNull;
 import javax.ws.rs.Consumes;
@@ -38,6 +39,7 @@ public class ObservationResource {
 
   /**
    * Create a new Observation.
+   * 
    * @param newObservation New observation data.
    * @return ID of newly created observation.
    */
@@ -51,12 +53,11 @@ public class ObservationResource {
       tutors.add(tutorDao.get(l));
     }
     final Site site = siteDao.get(newObservation.getSiteId());
-    Observation observation = Observation.builder().site(site).tutors(tutors)
-        .observed(newObservation.getObserved()).type(TrainingType.valueOf(newObservation.getType()))
-        .monitoring(newObservation.getMonitoring()).control(newObservation.getControl())
-        .conservatism(newObservation.getConservatism()).teamwork(newObservation.getTeamwork())
-        .knowledge(newObservation.getKnowledge()).observations(newObservation.getRawData())
-        .date(submissionDate).whom(newObservation.getWhom()).build();
+    Observation observation = Observation.builder().site(site).tutors(tutors).observed(newObservation.getObserved())
+        .type(TrainingType.valueOf(newObservation.getType())).monitoring(newObservation.getMonitoring())
+        .control(newObservation.getControl()).conservatism(newObservation.getConservatism())
+        .teamwork(newObservation.getTeamwork()).knowledge(newObservation.getKnowledge())
+        .observations(newObservation.getRawData()).date(submissionDate).whom(newObservation.getWhom()).build();
     for (Tutor t : tutors) {
       t.getObservations().add(observation);
     }
@@ -65,21 +66,54 @@ public class ObservationResource {
     return observation.getId();
   }
 
+  @GET
+  @UnitOfWork
+  public List<Observation> observations(@QueryParam("site") Integer siteId, @QueryParam("tutor") Integer tutorId,
+      @QueryParam("startDate") String startDate, @QueryParam("endDate") String endDate,
+      @QueryParam("whom") String whom) {
+    Site site = null;
+    Tutor tutor = null;
+    DateTime start = null;
+    DateTime end = null;
+    try {
+      site = siteDao.get(siteId);
+    } catch (Exception e) {
+      log.warn("Couldn't get site with ID " + siteId);
+    }
+    try {
+      tutor = tutorDao.get(tutorId);
+    } catch (Exception e) {
+      log.warn("Couldn't get tutor with ID " + tutorId);
+    }
+    try {
+      start = DateTime.parse(startDate);
+    } catch (Exception e) {
+      log.warn("Couldn't get a valid date from " + startDate);
+    }
+    try {
+      end = DateTime.parse(endDate);
+    } catch (Exception e) {
+      log.warn("Couldn't get a valid date from " + endDate);
+    }
+    return dao.filteredList(site, tutor, start, end, whom);
+  }
+
   /**
    * Get a Chart.js compatible llist of average observation scores grouped by day.
-   * @param siteId Only observations for site.
-   * @param tutorId Only observations for tutor.
+   * 
+   * @param siteId    Only observations for site.
+   * @param tutorId   Only observations for tutor.
    * @param startDate Only observations after startDate.
-   * @param endDate Only observations before endDate.
-   * @param whom Only observations of whom.
+   * @param endDate   Only observations before endDate.
+   * @param whom      Only observations of whom.
    * @return Chart.js stats object.
    */
   @Path("/average")
   @GET
   @UnitOfWork
   public AverageStatsChartJs averageObservationScores(@QueryParam("site") Integer siteId,
-        @QueryParam("tutor") Integer tutorId, @QueryParam("startDate") String startDate,
-        @QueryParam("endDate") String endDate, @QueryParam("whom") String whom) {
+      @QueryParam("tutor") Integer tutorId, @QueryParam("startDate") String startDate,
+      @QueryParam("endDate") String endDate, @QueryParam("whom") String whom) {
     Site site = null;
     Tutor tutor = null;
     DateTime start = null;