diff --git a/include/ircd/m/event.h b/include/ircd/m/event.h
index faad2ccf4..ed9a806a2 100644
--- a/include/ircd/m/event.h
+++ b/include/ircd/m/event.h
@@ -25,6 +25,8 @@ namespace ircd::m
 
 	// [GET]
 	bool exists(const id::event &);
+	bool bad(const id::event &, uint64_t &);
+	bool bad(const id::event &);
 
 	// Depth comparison; expect unstable sorting.
 	bool operator<(const event &, const event &);
diff --git a/ircd/m/event.cc b/ircd/m/event.cc
index 6b369d354..febb462ce 100644
--- a/ircd/m/event.cc
+++ b/ircd/m/event.cc
@@ -289,6 +289,41 @@ ircd::m::operator<(const event &a, const event &b)
 	return at<"depth"_>(a) < at<"depth"_>(b);
 }
 
+bool
+ircd::m::bad(const id::event &event_id)
+{
+	auto &column
+	{
+		dbs::event_bad
+	};
+
+	return has(column, event_id);
+}
+
+bool
+ircd::m::bad(const id::event &event_id,
+             uint64_t &idx)
+{
+	auto &column
+	{
+		dbs::event_bad
+	};
+
+	bool ret;
+	const string_view value
+	{
+		read(column, event_id, ret, mutable_buffer
+		{
+			reinterpret_cast<char *>(&idx), sizeof(idx)
+		})
+	};
+
+	if(!value)
+		idx = uint64_t(-1);
+
+	return ret;
+}
+
 bool
 ircd::m::exists(const id::event &event_id)
 {