diff --git a/ShimmerBluetoothManager/src/main/java/com/shimmerresearch/managers/bluetoothManager/ShimmerBluetoothManager.java b/ShimmerBluetoothManager/src/main/java/com/shimmerresearch/managers/bluetoothManager/ShimmerBluetoothManager.java
index 3d2fcb3a8..55ca104e1 100644
--- a/ShimmerBluetoothManager/src/main/java/com/shimmerresearch/managers/bluetoothManager/ShimmerBluetoothManager.java
+++ b/ShimmerBluetoothManager/src/main/java/com/shimmerresearch/managers/bluetoothManager/ShimmerBluetoothManager.java
@@ -494,6 +494,17 @@ public ShimmerDevice getShimmerDeviceBtConnected(String connectionHandle){
 		return shimmerDevice;
 	}
 
+	public boolean checkIfAlgoEnabledonAnyConnectedDevice(String algoName) {
+		for (String comPort:mMapOfBtConnectedShimmers.keySet()) {
+			ShimmerDevice device = getShimmerDeviceBtConnected(comPort);
+			boolean algoenabled = device.isAlgorithmEnabled(algoName);
+			if(algoenabled) {
+				return true;
+			}
+		}
+		return false;		
+	}
+	
 	public ShimmerDevice getShimmerDeviceBtConnectedFromMac(String macAddress){
 		Iterator<ShimmerDevice> iterator = mMapOfBtConnectedShimmers.values().iterator();
 		while(iterator.hasNext()){
diff --git a/ShimmerDriver/src/main/java/com/shimmerresearch/driverUtilities/UtilShimmer.java b/ShimmerDriver/src/main/java/com/shimmerresearch/driverUtilities/UtilShimmer.java
index 1c4e456c5..e9925a995 100644
--- a/ShimmerDriver/src/main/java/com/shimmerresearch/driverUtilities/UtilShimmer.java
+++ b/ShimmerDriver/src/main/java/com/shimmerresearch/driverUtilities/UtilShimmer.java
@@ -29,6 +29,7 @@
 import java.util.Map.Entry;
 import java.util.Random;
 import java.util.TimeZone;
+import java.util.regex.Pattern;
 
 import org.apache.commons.lang3.ArrayUtils;
 
@@ -938,7 +939,19 @@ public int compare(Entry<Double, Double> o1,
         }
         return new ArrayList<Double>(sortedMap.keySet());
     }
-
+	// Regex breakdown:
+    // ^          : Start of string
+    // [0-9a-fA-F]{2} : Two hex characters
+    // ( (:[0-9a-fA-F]{2}){5} | ([0-9a-fA-F]{2}){5} ) : Either 5 groups preceded by colons OR 5 groups with nothing
+    // $          : End of string
+    private static final String MAC_REGEX = "^([0-9a-fA-F]{2})((:[0-9a-fA-F]{2}){5}|([0-9a-fA-F]{2}){5})$";
+    private static final Pattern MAC_PATTERN = Pattern.compile(MAC_REGEX);
+
+    public static boolean isValidMacAddress(String mac) {
+        if (mac == null) return false;
+        return MAC_PATTERN.matcher(mac).matches();
+    }
+    
 	public static boolean isValidMac(String mac) {
 		if(mac==null){
 			return false;
@@ -954,7 +967,7 @@ public static boolean isValidMac(String mac) {
 		
 		return true;
 	}
-
+	
 	public static String getDayString(int dayIndex) {
 		switch (dayIndex) {
 		    case Calendar.SUNDAY:
diff --git a/ShimmerDriver/src/test/java/com/shimmerresearch/driverUtilities/API_00007_UtilShimmerTest.java b/ShimmerDriver/src/test/java/com/shimmerresearch/driverUtilities/API_00007_UtilShimmerTest.java
index 31205d7f6..057e6a89b 100644
--- a/ShimmerDriver/src/test/java/com/shimmerresearch/driverUtilities/API_00007_UtilShimmerTest.java
+++ b/ShimmerDriver/src/test/java/com/shimmerresearch/driverUtilities/API_00007_UtilShimmerTest.java
@@ -6,6 +6,62 @@
 
 public class API_00007_UtilShimmerTest {
 
+	@Test
+    public void testValidMacWithColons() {
+        // Upper case
+        assertTrue("Should be valid: Uppercase with colons", 
+            UtilShimmer.isValidMacAddress("00:1A:2B:3C:4D:5E"));
+        // Lower case
+        assertTrue("Should be valid: Lowercase with colons", 
+        		UtilShimmer.isValidMacAddress("00:1a:2b:3c:4d:5e"));
+    }
+
+    @Test
+    public void testValidMacWithoutColons() {
+        // Pure Hex string
+        assertTrue("Should be valid: Plain hex string", 
+        		UtilShimmer.isValidMacAddress("001A2B3C4D5E"));
+        assertTrue("Should be valid: Lowercase plain hex", 
+        		UtilShimmer.isValidMacAddress("001a2b3c4d5e"));
+    }
+
+    @Test
+    public void testInvalidCharacters() {
+        // Contains 'G' (non-hex)
+        assertFalse("Should be invalid: Contains non-hex character G", 
+        		UtilShimmer.isValidMacAddress("00:1A:2B:3C:4D:5G"));
+        // Contains special characters
+        assertFalse("Should be invalid: Contains symbols", 
+        		UtilShimmer.isValidMacAddress("00:1A:2B:3C:4D:5#"));
+    }
+
+    @Test
+    public void testInvalidLength() {
+        // Too short
+        assertFalse("Should be invalid: Too short", 
+        		UtilShimmer.isValidMacAddress("00:1A:2B"));
+        // Too long
+        assertFalse("Should be invalid: Too long", 
+        		UtilShimmer.isValidMacAddress("00:1A:2B:3C:4D:5E:6F"));
+    }
+
+    @Test
+    public void testMixedFormats() {
+        // Cannot mix "no-colon" with "colons" halfway through
+        assertFalse("Should be invalid: Inconsistent colon usage", 
+        		UtilShimmer.isValidMacAddress("001A2B:3C:4D:5E"));
+    }
+
+    @Test
+    public void testEdgeCases() {
+        assertFalse("Should be invalid: Null input", 
+        		UtilShimmer.isValidMacAddress(null));
+        assertFalse("Should be invalid: Empty string", 
+        		UtilShimmer.isValidMacAddress(""));
+        assertFalse("Should be invalid: Spaces included", 
+        		UtilShimmer.isValidMacAddress("00 1A 2B 3C 4D 5E"));
+    }
+	
 	@Test
     public void testRoundZeroDecimalPoints() {
         assertTrue(UtilShimmer.round(5.567, 0) == 6.0);