diff --git a/platform/entanglement/src/services/CopyService.js b/platform/entanglement/src/services/CopyService.js
index d62eb2a0ed..48ba3e7ce5 100644
--- a/platform/entanglement/src/services/CopyService.js
+++ b/platform/entanglement/src/services/CopyService.js
@@ -64,6 +64,12 @@ define(
                 return self.perform(domainObject, parent);
             }
 
+            if (!this.validate(domainObject, parent)) {
+                throw new Error(
+                    "Tried to copy objects without validating first."
+                );
+            }
+
             if (domainObject.hasCapability('composition')) {
                 model.composition = [];
             }
diff --git a/platform/entanglement/src/services/LinkService.js b/platform/entanglement/src/services/LinkService.js
index da4a89e33c..465a07f3de 100644
--- a/platform/entanglement/src/services/LinkService.js
+++ b/platform/entanglement/src/services/LinkService.js
@@ -53,15 +53,18 @@ define(
         };
 
         LinkService.prototype.perform = function (object, parentObject) {
-            // It is assumed here that validate has been called, and therefore
-            // that parentObject.hasCapability('composition').
-            var composition = parentObject.getCapability('composition');
+            if (!this.validate(object, parentObject)) {
+                throw new Error(
+                    "Tried to link objects without validating first."
+                );
+            }
 
-            return composition.add(object).then(function (objectInNewContext) {
-                return parentObject.getCapability('persistence')
-                    .persist()
-                    .then(function () { return objectInNewContext; });
-            });
+            return parentObject.getCapability('composition').add(object)
+                .then(function (objectInNewContext) {
+                    return parentObject.getCapability('persistence')
+                        .persist()
+                        .then(function () { return objectInNewContext; });
+                });
         };
 
         return LinkService;
diff --git a/platform/entanglement/src/services/MoveService.js b/platform/entanglement/src/services/MoveService.js
index 30c341ef22..608163310f 100644
--- a/platform/entanglement/src/services/MoveService.js
+++ b/platform/entanglement/src/services/MoveService.js
@@ -82,6 +82,12 @@ define(
                 }
             }
 
+            if (!this.validate(object, parentObject)) {
+                throw new Error(
+                    "Tried to move objects without validating first."
+                );
+            }
+
             return this.linkService
                 .perform(object, parentObject)
                 .then(relocate)