diff --git a/scripts/copy_cram_for_str.sh b/scripts/copy_cram_for_str.sh
new file mode 100644
index 00000000..c668fa88
--- /dev/null
+++ b/scripts/copy_cram_for_str.sh
@@ -0,0 +1,10 @@
+#!/usr/bin/env bash
+
+#check if segDup causing extremely high coverage 
+gsutil cp "gs://cpg-tob-wgs-main/cram/nagim/CPG3772.cram" "gs://cpg-tob-wgs-test/cram/nagim/CPG3772.cram"
+gsutil cp "gs://cpg-tob-wgs-main/cram/nagim/CPG3772.cram.crai" "gs://cpg-tob-wgs-test/cram/nagim/CPG3772.cram.crai"
+
+# check optical duplicate issue
+gsutil cp "gs://cpg-tob-wgs-main/cram/nagim/CPG67314.cram" "gs://cpg-tob-wgs-test/cram/nagim/CPG67314.cram"
+gsutil cp "gs://cpg-tob-wgs-main/cram/nagim/CPG67314.cram.crai" "gs://cpg-tob-wgs-test/cram/nagim/CPG67314.cram.crai"
+