--- infinite_chest.old/api.lua
+++ infinite_chest/api.lua
@@ -81,8 +81,15 @@
 	meta:get_inventory():set_size(page, 15*5)
 end
 
-infinite_chest.remove_page = function(pos,page)
+infinite_chest.remove_page = function (pos, page, sender)
 	local meta = minetest.env:get_meta(pos)
+
+	if sender and
+	    not infinite_chest.has_locked_chest_privilege (meta, sender) then
+		infinite_chest.log (sender:get_player_name() .. " tried to edit a locked chest belonging to "..meta:get_string("owner").." at "..minetest.pos_to_string(pos))
+		return 0
+	end
+
 	local invs = meta:get_string("infinite_chest_list")
 	local inv = meta:get_inventory()
 	if not inv:is_empty(page) then
@@ -117,7 +124,7 @@
 		return
 	end
 	if fields.delete ~= nil then
-		if not infinite_chest.remove_page(pos,fields.page) then
+		if not infinite_chest.remove_page (pos,fields.page, sender) then
 			minetest.chat_send_player(sender:get_player_name(), "cannot delete \""..fields.page.."\" - page is not empty")
 			return
 		end