diff --git a/storage/graph_test.go b/storage/graph_test.go
index 0f02009..28b237e 100644
--- a/storage/graph_test.go
+++ b/storage/graph_test.go
@@ -126,6 +126,51 @@ func TestIntegration(t *testing.T) {
 		}
 	})
 
+	t.Run("graph.Delete(case insensitives() => 0)", func(t *testing.T) {
+		cleanFill()
+		err := graph.Delete(ctx, "col", operator.CaseInsensitives{Key: entity.Name, Values: []string{}})
+		if err != nil {
+			t.Fatal(err)
+		}
+		ones, err := graph.List(ctx, "col")
+		if err != nil {
+			t.Fatal(err)
+		}
+		if len(ones) != 0 {
+			t.Fatal(len(ones))
+		}
+	})
+
+	t.Run("graph.Delete(case insensitives(.*) => 0)", func(t *testing.T) {
+		cleanFill()
+		err := graph.Delete(ctx, "col", operator.CaseInsensitives{Key: entity.Name, Values: []string{".*"}})
+		if err != nil {
+			t.Fatal(err)
+		}
+		ones, err := graph.List(ctx, "col")
+		if err != nil {
+			t.Fatal(err)
+		}
+		if len(ones) < 0 {
+			t.Fatal(len(ones))
+		}
+	})
+
+	t.Run("graph.Delete(case insensitive(.*) => 0)", func(t *testing.T) {
+		cleanFill()
+		err := graph.Delete(ctx, "col", operator.CaseInsensitive{Key: entity.Name, Value: ".*"})
+		if err != nil {
+			t.Fatal(err)
+		}
+		ones, err := graph.List(ctx, "col")
+		if err != nil {
+			t.Fatal(err)
+		}
+		if len(ones) < 0 {
+			t.Fatal(len(ones))
+		}
+	})
+
 	t.Run("graph.Search(foo => *)", func(t *testing.T) {
 		cleanFill()
 		some, err := graph.Search(ctx, "col", ones[0].Name[:3])
diff --git a/storage/operator/filter.go b/storage/operator/filter.go
index c2f4cfd..fdd5ad1 100644
--- a/storage/operator/filter.go
+++ b/storage/operator/filter.go
@@ -2,7 +2,6 @@ package operator
 
 import (
 	"fmt"
-	"regexp"
 	"strings"
 
 	"go.mongodb.org/mongo-driver/bson"
@@ -26,14 +25,10 @@ func (cis CaseInsensitives) MarshalBSON() ([]byte, error) {
 	values := cis.Values
 	if len(cis.Values) == 0 {
 		values = []string{".*"}
-	} else {
-		for i := range values {
-			values[i] = escapeRegex(values[i])
-		}
 	}
 	ci := CaseInsensitive{
 		Key:   cis.Key,
-		Value: fmt.Sprintf("^(%s)$", strings.Join(values, "|")),
+		Value: fmt.Sprintf("(%s)", strings.Join(values, "|")),
 	}
 	return bson.Marshal(ci)
 }
@@ -46,11 +41,9 @@ type CaseInsensitive struct {
 func (ci CaseInsensitive) MarshalBSON() ([]byte, error) {
 	value := ci.Value
 	if value == "" {
-		value = "^$"
-	} else {
-		value = escapeRegex(value)
+		value = ".*"
 	}
-	return bson.Marshal(Regex{Key: ci.Key, Value: "(?i)" + ci.Value})
+	return bson.Marshal(Regex{Key: ci.Key, Value: "^(?i)" + value + "$"})
 }
 
 type FilterIn struct {
@@ -107,9 +100,3 @@ func filterMarshal(op, key string, value interface{}) ([]byte, error) {
 	}
 	return bson.Marshal(m)
 }
-
-func escapeRegex(s string) string {
-	re := regexp.MustCompile(`[^a-zA-Z0-9]`)
-	s = re.ReplaceAllString(s, `.`)
-	return s
-}
diff --git a/view/who.go b/view/who.go
index ef23a7e..85ce58a 100644
--- a/view/who.go
+++ b/view/who.go
@@ -9,6 +9,7 @@ import (
 	"local/dndex/storage/entity"
 	"local/dndex/storage/operator"
 	"net/http"
+	"regexp"
 	"sort"
 	"strings"
 
@@ -43,7 +44,7 @@ func who(g storage.Graph, w http.ResponseWriter, r *http.Request) error {
 }
 
 func whoGet(namespace string, g storage.Graph, w http.ResponseWriter, r *http.Request) error {
-	id, err := getID(r)
+	id, err := getCleanID(r)
 	if err != nil {
 		return whoTrace(namespace, g, w, r)
 	}
@@ -145,7 +146,7 @@ func whoPost(namespace string, g storage.Graph, w http.ResponseWriter, r *http.R
 }
 
 func whoDelete(namespace string, g storage.Graph, w http.ResponseWriter, r *http.Request) error {
-	id, err := getID(r)
+	id, err := getCleanID(r)
 	if err != nil {
 		w.WriteHeader(http.StatusBadRequest)
 		return json.NewEncoder(w).Encode(map[string]string{"error": err.Error()})
@@ -201,6 +202,11 @@ func whoTrace(namespace string, g storage.Graph, w http.ResponseWriter, r *http.
 	return enc.Encode(names)
 }
 
+func getCleanID(r *http.Request) (string, error) {
+	id, err := getID(r)
+	return sanitize(id), err
+}
+
 func getID(r *http.Request) (string, error) {
 	id := r.URL.Query().Get("id")
 	if id == "" {
@@ -210,11 +216,11 @@ func getID(r *http.Request) (string, error) {
 }
 
 func sortOnes(ones []entity.One, r *http.Request) []entity.One {
-	sorting := r.URL.Query().Get("sort")
+	sorting := sanitize(r.URL.Query().Get("sort"))
 	if sorting == "" {
 		sorting = entity.Modified
 	}
-	order := r.URL.Query().Get("order")
+	order := sanitize(r.URL.Query().Get("order"))
 	if order == "" {
 		order = "-1"
 	}
@@ -236,3 +242,9 @@ func sortOnes(ones []entity.One, r *http.Request) []entity.One {
 	})
 	return ones
 }
+
+func sanitize(s string) string {
+	re := regexp.MustCompile(`[^a-zA-Z0-9- _]`)
+	s = re.ReplaceAllString(s, `.`)
+	return s
+}
diff --git a/view/who_test.go b/view/who_test.go
index e108beb..f2b1e5e 100644
--- a/view/who_test.go
+++ b/view/who_test.go
@@ -246,6 +246,30 @@ func TestWho(t *testing.T) {
 		}
 	})
 
+	t.Run("delete regexp should be sanitized", func(t *testing.T) {
+		r := httptest.NewRequest(http.MethodDelete, "/who?namespace=col&id=.*", nil)
+		w := httptest.NewRecorder()
+		handler.ServeHTTP(w, r)
+		if w.Code != http.StatusOK {
+			t.Fatalf("%d: %s", w.Code, w.Body.Bytes())
+		}
+
+		r = httptest.NewRequest(http.MethodTrace, "/who?namespace=col", nil)
+		w = httptest.NewRecorder()
+		handler.ServeHTTP(w, r)
+		if w.Code != http.StatusOK {
+			t.Fatalf("%d: %s", w.Code, w.Body.Bytes())
+		}
+		var v []string
+		if err := json.Unmarshal(w.Body.Bytes(), &v); err != nil {
+			t.Fatalf("%v: %s", err, w.Body.Bytes())
+		}
+		if len(v) < 5 {
+			t.Fatal(len(v))
+		}
+		t.Logf("%+v", v)
+	})
+
 	t.Run("patch fake", func(t *testing.T) {
 		r := httptest.NewRequest(http.MethodPatch, "/who?namespace=col&id=FAKER"+want.Name, nil)
 		w := httptest.NewRecorder()