diff --git a/src/Acquisition/AcquisitionControl.java b/src/Acquisition/AcquisitionControl.java
index b9410172..af2dddae 100644
--- a/src/Acquisition/AcquisitionControl.java
+++ b/src/Acquisition/AcquisitionControl.java
@@ -878,6 +878,7 @@ public class AcquisitionControl extends RawInputControlledUnit implements PamSet
 	public InputStoreInfo getStoreInfo(boolean detail) {
 		return getDaqProcess().getStoreInfo(detail);
 	}
+	
 	@Override
 	public boolean setAnalysisStartTime(long startTime) {
 		return getDaqProcess().setAnalysisStartTime(startTime);
diff --git a/src/Acquisition/AcquisitionProcess.java b/src/Acquisition/AcquisitionProcess.java
index b8c33ac5..e26f7b34 100644
--- a/src/Acquisition/AcquisitionProcess.java
+++ b/src/Acquisition/AcquisitionProcess.java
@@ -65,7 +65,7 @@ import pamScrollSystem.ViewLoadObserver;
  * @see PamguardMVC.PamDataUnit
  *
  */
-public class AcquisitionProcess extends PamProcess implements DataInputStore {
+public class AcquisitionProcess extends PamProcess {
 	
 	public static final int LASTDATA = 2; // don't use zero since need to see if no notification has been received. 
 	
@@ -1240,7 +1240,6 @@ public class AcquisitionProcess extends PamProcess implements DataInputStore {
 		return daqStatusDataBlock;
 	}
 
-	@Override
 	public InputStoreInfo getStoreInfo(boolean detail) {
 		if (runningSystem instanceof DataInputStore) {
 			return ((DataInputStore) runningSystem).getStoreInfo(detail);
@@ -1250,7 +1249,6 @@ public class AcquisitionProcess extends PamProcess implements DataInputStore {
 		}
 	}
 
-	@Override
 	public boolean setAnalysisStartTime(long startTime) {
 		if (runningSystem instanceof DataInputStore) {
 			return ((DataInputStore) runningSystem).setAnalysisStartTime(startTime);
diff --git a/src/PamController/DataInputStore.java b/src/PamController/DataInputStore.java
index af4f5a4b..ce7330e8 100644
--- a/src/PamController/DataInputStore.java
+++ b/src/PamController/DataInputStore.java
@@ -28,4 +28,11 @@ public interface DataInputStore {
 	 */
 	public boolean setAnalysisStartTime(long startTime);
 
+	/**
+	 * Very specific command handler for batch status which will only work 
+	 * with the acquisition folderinputSystem or the tritech file processing. 
+	 * @return
+	 */
+	public String getBatchStatus();
+
 }
diff --git a/src/PamController/command/BatchStatusCommand.java b/src/PamController/command/BatchStatusCommand.java
index 046dff3e..5c56aacc 100644
--- a/src/PamController/command/BatchStatusCommand.java
+++ b/src/PamController/command/BatchStatusCommand.java
@@ -1,6 +1,10 @@
 package PamController.command;
 
+import java.util.ArrayList;
+
 import Acquisition.AcquisitionControl;
+import PamController.DataInputStore;
+import PamController.PamControlledUnit;
 import PamController.PamController;
 import offlineProcessing.OfflineTaskManager;
 import pamViewFX.PamControlledGUIFX;
@@ -35,7 +39,16 @@ public class BatchStatusCommand extends ExtCommand {
 	}
 
 	private String getNormalModeStatus(String command) {
-		AcquisitionControl daqControl = (AcquisitionControl) PamController.getInstance().findControlledUnit(AcquisitionControl.class, null);
+		/**
+		 * find a controlled unit thats a DataInputSource which should either be a sound daq or a Tritech daq module. 
+		 */
+		ArrayList<PamControlledUnit> inputSources = PamController.getInstance().findControlledUnits(DataInputStore.class, true);
+		if (inputSources.size() == 0) {
+			return null;
+		}
+//		DataInputStore daqControl = (DataInputStore) PamController.getInstance().findControlledUnit(DataInputStore.class, null);
+		DataInputStore daqControl = (DataInputStore) inputSources.get(0);
+//		System.out.println("Getting batch status from : " + daqControl);
 		if (daqControl == null) {
 			return null;
 		}
diff --git a/src/PamUtils/FileList.java b/src/PamUtils/FileList.java
index b6612180..7297ac76 100644
--- a/src/PamUtils/FileList.java
+++ b/src/PamUtils/FileList.java
@@ -60,17 +60,19 @@ public class FileList {
 //		System.out.println("Adding files from folder " + folder.getAbsolutePath());
 		// first go through all the files in this folder
 		File[] newFiles = folder.listFiles(fileFilter);
+		if (newFiles == null) {
+			return fileList; // nothing to do here. 
+		}
 		for (int i = 0; i < newFiles.length; i++) {
 			if (!newFiles[i].isDirectory()) {
 				fileList.add(newFiles[i]);
-//				System.out.println("  adding file " + newFiles[i].getName());
+				//				System.out.println("  adding file " + newFiles[i].getName());
 			}
 			else if (includeSubFolders) {
 				fileList = addFiles(newFiles[i], fileList, fileFilter, includeSubFolders);
 			}
 		}
-		
-		
+
 		return fileList;
 	}
 }