diff --git a/client/src/main/resources/lang/locale.properties b/client/src/main/resources/lang/locale.properties
index b10006e..191e75b 100644
--- a/client/src/main/resources/lang/locale.properties
+++ b/client/src/main/resources/lang/locale.properties
@@ -68,9 +68,11 @@ power.HUDSON=Zachary Hudson
 power.TORVAL=Zemina Torval
 power.NONE=None
 
-power.states.CONTROL=Controlling
+power.states.HEADQUARTERS=Headquarters
+power.states.CONTROL=Controlled
 power.states.EXPLOITED=Exploited
 power.states.EXPANSION=Expansion
+power.states.CONTESTED=Contested
 power.states.NONE=None
 
 item.group.chemicals=Chemicals
diff --git a/client/src/main/resources/lang/locale_ru_RU_FULL.properties b/client/src/main/resources/lang/locale_ru_RU_FULL.properties
index c705c99..a55cf70 100644
--- a/client/src/main/resources/lang/locale_ru_RU_FULL.properties
+++ b/client/src/main/resources/lang/locale_ru_RU_FULL.properties
@@ -70,9 +70,11 @@ power.HUDSON=Zachary Hudson
 power.TORVAL=Zemina Torval
 power.NONE=\u041D\u0435\u0442
 
+power.states.HEADQUARTERS=\u0428\u0442\u0430\u0431-\u043A\u0432\u0430\u0440\u0442\u0438\u0440\u0430
 power.states.CONTROL=\u041A\u043E\u043D\u0442\u0440\u043E\u043B\u0438\u0440\u0443\u0435\u0442\u0441\u044F
 power.states.EXPLOITED=\u042D\u043A\u0441\u043F\u043B\u0443\u0430\u0442\u0438\u0440\u0443\u0435\u0442\u0441\u044F
 power.states.EXPANSION=\u042D\u043A\u0441\u043F\u0430\u043D\u0441\u0438\u044F
+power.states.CONTESTED=\u041E\u0441\u043F\u0430\u0440\u0438\u0432\u0430\u0435\u0442\u0441\u044F
 power.states.NONE=\u041D\u0435\u0442
 
 item.group.chemicals=\u0425\u0438\u043C\u0438\u043A\u0430\u0442\u044B
diff --git a/core/src/main/java/ru/trader/core/POWER.java b/core/src/main/java/ru/trader/core/POWER.java
index 714472b..7cc3374 100644
--- a/core/src/main/java/ru/trader/core/POWER.java
+++ b/core/src/main/java/ru/trader/core/POWER.java
@@ -6,7 +6,7 @@ public enum POWER {
         // Control Systems: Imperial Slaves banned
         @Override
         public boolean isIllegal(FACTION faction, Item item, POWER_STATE state) {
-            if (state == POWER_STATE.CONTROL || state == POWER_STATE.EXPLOITED){
+            if (state != null && (state.isControl() || state.isExploited())){
                 String itemId = item.getName();
                 return itemId != null && IMPERIAL_SLAVES.equals(itemId);
             }
@@ -17,7 +17,7 @@ public enum POWER {
         // Control Systems: All weapons/slaves/narcotics/medicals legalised
         @Override
         public boolean isLegal(FACTION faction, Item item, POWER_STATE state) {
-            if (state == POWER_STATE.CONTROL){
+            if (state != null && state.isControl()){
                 String groupId = item.getGroup() != null ? item.getGroup().getName() : null;
                 return groupId != null && (WEAPONS_GRP.equals(groupId) || SLAVES_GRP.equals(groupId) || NARCOTICS_GRP.equals(groupId) || MEDICINE_GRP.equals(groupId));
             }
@@ -29,7 +29,7 @@ public enum POWER {
         // Control Systems: Imperial Slaves legalised
         @Override
         public boolean isLegal(FACTION faction, Item item, POWER_STATE state) {
-            if (state == POWER_STATE.CONTROL){
+            if (state != null && state.isControl()){
                 String itemId = item.getName();
                 return itemId != null && IMPERIAL_SLAVES.equals(itemId);
             }
@@ -43,11 +43,11 @@ public enum POWER {
         // Control Systems: Imperial Slaves banned
         @Override
         public boolean isIllegal(FACTION faction, Item item, POWER_STATE state) {
-            if (state == POWER_STATE.CONTROL){
+            if (state != null && state.isControl()){
                 String itemId = item.getName();
                 return itemId != null && IMPERIAL_SLAVES.equals(itemId);
             } else
-            if (state == POWER_STATE.EXPLOITED){
+            if (state != null && state.isExploited()){
                 String itemId = item.getName();
                 return itemId != null && IMPERIAL_SLAVES.equals(itemId) && (faction != null && faction != FACTION.EMPIRE);
             }
@@ -60,7 +60,7 @@ public enum POWER {
         // Control Systems: All Slaves, Narcotics and non-basic/agri medicines banned
         @Override
         public boolean isIllegal(FACTION faction, Item item, POWER_STATE state) {
-            if (state == POWER_STATE.CONTROL || state == POWER_STATE.EXPLOITED){
+            if (state != null && (state.isControl() || state.isExploited())){
                 String groupId = item.getGroup() != null ? item.getGroup().getName() : null;
                 String itemId = item.getName();
                 return groupId != null && (SLAVES_GRP.equals(groupId) || NARCOTICS_GRP.equals(groupId)
@@ -74,7 +74,7 @@ public enum POWER {
         // Control Systems: Imperial Slaves banned
         @Override
         public boolean isIllegal(FACTION faction, Item item, POWER_STATE state) {
-            if (state == POWER_STATE.CONTROL){
+            if (state != null && state.isControl()){
                 String itemId = item.getName();
                 return itemId != null && IMPERIAL_SLAVES.equals(itemId);
             }
@@ -85,7 +85,7 @@ public enum POWER {
         // Control Systems: Imperial Slaves legalised
         @Override
         public boolean isLegal(FACTION faction, Item item, POWER_STATE state) {
-            if (state == POWER_STATE.CONTROL){
+            if (state != null && state.isControl()){
                 String itemId = item.getName();
                 return itemId != null && IMPERIAL_SLAVES.equals(itemId);
             }
diff --git a/core/src/main/java/ru/trader/core/POWER_STATE.java b/core/src/main/java/ru/trader/core/POWER_STATE.java
index dc7bcda..cb9b2ef 100644
--- a/core/src/main/java/ru/trader/core/POWER_STATE.java
+++ b/core/src/main/java/ru/trader/core/POWER_STATE.java
@@ -1,5 +1,13 @@
 package ru.trader.core;
 
 public enum POWER_STATE {
-    CONTROL, EXPLOITED, EXPANSION, NONE
+    CONTROL, EXPLOITED, EXPANSION, NONE, CONTESTED, HEADQUARTERS;
+
+    boolean isControl(){
+        return this == CONTROL || this == HEADQUARTERS;
+    }
+
+    boolean isExploited(){
+        return this == EXPLOITED;
+    }
 }