diff --git a/checksit/rules/rule_funcs.py b/checksit/rules/rule_funcs.py
index 009e9f42..af5b3538 100644
--- a/checksit/rules/rule_funcs.py
+++ b/checksit/rules/rule_funcs.py
@@ -220,13 +220,34 @@ def title_instrument(value, context, extras=None, label=""):
     #if instrument not in data['ncas_instrument'][*]['description']:
     #if instrument not in descriptn:
     if instrument not in data['ncas_instrument']:
-        warnings.append(f"{label} '{value}' should be contained in the instrument controlled vocabulary list")
+        warnings.append(f"{label} '{instrument}' should be contained in the instrument controlled vocabulary list")
 
     # Closing file
     f.close()
 
     return warnings
 
+def title_platform(value, context, extras=None, label=""):
+    """
+    A function to check if the platform in the title is contained in the controlled vocabulary list
+    """
+    warnings = []
+
+    platform = value.split("_")[1]
+
+    # open JSON controlled vocab file:
+    g = open ('./checksit/vocabs/AMF_CVs/2.0.0/AMF_platform.json', "r")
+ 
+    ## Reading from file:
+    data = json.loads(g.read())
+    
+    if platform not in data['platform']:
+        warnings.append(f"{label} '{platform}' should be contained in the platform controlled vocabulary list")
+
+    # Closing file
+    g.close()
+
+    return warnings
 
 def url_checker(value, context, extras=None, label=""):
     """
diff --git a/specs/groups/ncas-image-v1.0/amof-image-global-attrs.yml b/specs/groups/ncas-image-v1.0/amof-image-global-attrs.yml
index bd7dca20..63556fa2 100644
--- a/specs/groups/ncas-image-v1.0/amof-image-global-attrs.yml
+++ b/specs/groups/ncas-image-v1.0/amof-image-global-attrs.yml
@@ -15,7 +15,7 @@ required-global-attrs:
       XMP-xmpRights:WebStatement: regex-warning:http://www.nationalarchives.gov.uk/doc/open-government-licence/
       XMP-photoshop:Credit: regex-warning:National\sCentre\sfor\sAtmospheric\sScience\s\(NCAS\)
       # Source of the image
-      XMP-dc:Title: regex-rule:title-data-product, rule-func:title_check, rule-func-warning:title_instrument
+      XMP-dc:Title: regex-rule:title-data-product, rule-func:title_check, rule-func-warning:title_instrument, rule-func-warning:title_platform
       # Instrument Scientist’s Details
       XMP-dc:Creator: rule-func-warning:list_of_names
       XMP-iptcCore:CreatorWorkEmail: regex-rule-warning:ncas-email, regex-rule:valid-email