diff --git a/src/main/java/picard/fingerprint/CrosscheckFingerprints.java b/src/main/java/picard/fingerprint/CrosscheckFingerprints.java
index 9a2c338f4..b737b6d94 100644
--- a/src/main/java/picard/fingerprint/CrosscheckFingerprints.java
+++ b/src/main/java/picard/fingerprint/CrosscheckFingerprints.java
@@ -225,7 +225,7 @@ private void writeMatrix() {
         }
     }
 
-    private static Function<FingerprintIdDetails, String> getFingerprintIdDetailsStringFunction(CrosscheckMetric.DataType CROSSCHECK_BY) {
+    public static Function<FingerprintIdDetails, String> getFingerprintIdDetailsStringFunction(CrosscheckMetric.DataType CROSSCHECK_BY) {
         final Function<FingerprintIdDetails, String> groupByTemp;
         switch (CROSSCHECK_BY) {
             case READGROUP:
diff --git a/src/main/java/picard/fingerprint/FingerprintIdDetails.java b/src/main/java/picard/fingerprint/FingerprintIdDetails.java
index 72d6b5c5d..c8e3522fc 100644
--- a/src/main/java/picard/fingerprint/FingerprintIdDetails.java
+++ b/src/main/java/picard/fingerprint/FingerprintIdDetails.java
@@ -109,6 +109,14 @@ public FingerprintIdDetails merge(final FingerprintIdDetails other) {
         return lhs.equals(rhs) ? lhs : orElse;
     }
 
+    public String getPlatformUnit() {
+        return platformUnit;
+    }
+
+    public String getSample() {
+        return sample;
+    }
+
     /**
      * Fills the relevant fields from the platformUnit string.
      *