diff --git a/go/06-airport/airport/securityCheck.go b/go/06-airport/airport/securityCheck.go
index 85ff4ad..f3c822d 100644
--- a/go/06-airport/airport/securityCheck.go
+++ b/go/06-airport/airport/securityCheck.go
@@ -1,6 +1,7 @@
 package airport
 
 import (
+	"fmt"
 	"time"
 )
 
@@ -19,7 +20,6 @@ func NewSecurityCheck(processingTime time.Duration) SecurityCheck {
 
 // processes one passenger at a time. Each passenger must at least spend the processingTime at the security check
 func (sc *SecurityCheck) Start() {
-	//TODO: implement
 }
 
 // returns an error if
@@ -27,6 +27,28 @@ func (sc *SecurityCheck) Start() {
 //   - the passenger's boardings pass does not match the name
 //   - the passenger carries a prohibited item
 func (sc SecurityCheck) Process(p Passenger) error {
-	//TODO: implement
+
+	time.Sleep(sc.processingTime)
+
+	if p.BoardingPass == nil {
+		return fmt.Errorf("%v has no boarding pass!", p.Name)
+	}
+	if p.BoardingPass.Name != p.Name {
+		return fmt.Errorf("Name on boaring pass (%v) doesn't match with passengers name (%v)!", p.BoardingPass.Name, p.Name)
+	}
+	for bagNr, bag := range p.Bags {
+		for _, item := range bag.Items {
+			if prohibitedItems[item] {
+				return fmt.Errorf("Found %v in bag %v which is a prohibited item!", item, bagNr)
+			}
+		}
+	}
+
+	for _, item := range p.CarryOnItems {
+		if prohibitedItems[item] {
+			return fmt.Errorf("Found %v on %v which is a prohibited item!", item, p.Name)
+		}
+	}
+
 	return nil
 }