diff --git a/code/golang/internal/algorithms/search/poison/poison_fancy.go b/code/golang/internal/algorithms/search/poison/poison_fancy.go
index 0bc2acd..7f825c6 100644
--- a/code/golang/internal/algorithms/search/poison/poison_fancy.go
+++ b/code/golang/internal/algorithms/search/poison/poison_fancy.go
@@ -7,6 +7,7 @@ package poison
 import (
 	"fmt"
 
+	"ads/internal/core/logging"
 	"ads/internal/core/metrics"
 	"ads/internal/core/utils"
 	"ads/internal/setup"
@@ -65,6 +66,7 @@ func FancyFindPoison(input_L []int) (int, error) {
 
 		// Prechecks:
 		if setup.AppConfigPerformChecks() {
+			logging.LogDebug("hier1a")
 			err = preChecks(input_L)
 			if err != nil {
 				break
diff --git a/code/golang/internal/endpoints/endpoints_it.go b/code/golang/internal/endpoints/endpoints_it.go
index 032d6cf..254a87f 100644
--- a/code/golang/internal/endpoints/endpoints_it.go
+++ b/code/golang/internal/endpoints/endpoints_it.go
@@ -66,6 +66,7 @@ var menuSettings = menus.Menu{
 			{Label: "Aktueller Zustand", Action: actionShowSettings},
 			{Label: "Farbenmodus", Submenu: &menuColourMode},
 			{Label: "Debugmodus", Submenu: &menuDebugMode},
+			{Label: "Pre / Postchecking", Submenu: &menuPrePostChecking},
 		},
 	},
 	Default: -1,
@@ -103,6 +104,22 @@ var menuDebugMode = menus.Menu{
 	Default: 1,
 }
 
+var menuPrePostChecking = menus.Menu{
+	ForceReturn: true,
+	Path:        []string{"Hauptmenü", "Einstellungen", "Pre/Postchecking"},
+	PromptMessages: []string{
+		"Sollen Inputs+Outputs bei Algorithmenausführungen geprüft werden?",
+		"Option für den Pre/Postchecking wählen:",
+	},
+	Options: [][]menus.MenuOption{
+		{
+			{Label: "ein", Action: actionPrePostCheckingOn},
+			{Label: "aus", Action: actionPrePostCheckingOff},
+		},
+	},
+	Default: 1,
+}
+
 var menuSearchAlgorithms = menus.Menu{
 	Path: []string{"Hauptmenü", "Suchalgorithmen"},
 	PromptMessages: []string{
@@ -183,6 +200,16 @@ func actionDebugModeOff() (bool, error) {
 	return false, nil
 }
 
+func actionPrePostCheckingOn() (bool, error) {
+	setup.SetAppConfigPerformChecks(true)
+	return false, nil
+}
+
+func actionPrePostCheckingOff() (bool, error) {
+	setup.SetAppConfigPerformChecks(false)
+	return false, nil
+}
+
 /* ---------------------------------------------------------------- *
  * ACTIONS - Algorithmen
  * ---------------------------------------------------------------- */
@@ -311,7 +338,7 @@ func actionAlgorithmSearchJumpExp() (bool, error) {
 }
 
 func actionAlgorithmSearchPoison() (bool, error) {
-	input_L, cancel, err := PromptInputListOfInt("L", "Liste von Werten", []string{
+	input_L, cancel, err := PromptInputListOfZeroOnes("L", "Liste von Werten", []string{
 		"muss genau eine 1 enthalten",
 	})
 	if cancel || err != nil {
@@ -319,7 +346,6 @@ func actionAlgorithmSearchPoison() (bool, error) {
 	}
 	setup.DisplayStartOfCaseBlank()
 	algorithm_search_poison.FancyFindPoison(input_L)
-	logging.Prompt("hallo")
 	setup.DisplayEndOfCase()
 	return cancel, nil
 }
@@ -415,8 +441,9 @@ func PromptInputListOfInt(name string, descr string, requirements []string) ([]i
 }
 
 func PromptInputListOfZeroOnes(name string, descr string, requirements []string) ([]int, bool, error) {
+	var values = []int{}
 	type responseType struct {
-		Response []int `yaml:"response"`
+		Response []uint8 `yaml:"response"`
 	}
 	var response = responseType{}
 	var query = menus.PromptValueQuery{
@@ -431,5 +458,11 @@ func PromptInputListOfZeroOnes(name string, descr string, requirements []string)
 		Response:     &response,
 	}
 	cancel, err := query.Prompt()
-	return response.Response, cancel, err
+	// konvertiere in int
+	if !cancel && err != nil {
+		for _, x := range response.Response {
+			values = append(values, int(x))
+		}
+	}
+	return values, cancel, err
 }
diff --git a/code/golang/internal/menus/menus.go b/code/golang/internal/menus/menus.go
index fba1bbb..a3a0a02 100644
--- a/code/golang/internal/menus/menus.go
+++ b/code/golang/internal/menus/menus.go
@@ -172,9 +172,9 @@ func (query *PromptValueQuery) Prompt() (bool, error) {
 	if query.Requirements != nil && len(*query.Requirements) > 0 {
 		if len(*query.Requirements) == 1 {
 			requirement := (*query.Requirements)[0]
-			lines = append(lines, fmt.Sprintf("  \033[3;4mInput muss erfüllen:\033[0m \033[2m%s\033[0m", requirement))
+			lines = append(lines, fmt.Sprintf("  \033[3;4mAnforderung(en) auf Input:\033[0m \033[2m%s\033[0m", requirement))
 		} else {
-			lines = append(lines, fmt.Sprintf("  \033[3;4mInput muss erfüllen:\033[0m"))
+			lines = append(lines, fmt.Sprintf("  \033[3;4mAnforderung(en) auf Input:\033[0m"))
 			for _, requirement := range *query.Requirements {
 				lines = append(lines, fmt.Sprintf("  - \033[2m%s\033[0m", requirement))
 			}
diff --git a/code/golang/internal/setup/setup_appconfig.go b/code/golang/internal/setup/setup_appconfig.go
index 6522261..d440bbd 100644
--- a/code/golang/internal/setup/setup_appconfig.go
+++ b/code/golang/internal/setup/setup_appconfig.go
@@ -17,7 +17,7 @@ import (
 var AppConfig = types.AppConfig{}
 
 /* ---------------------------------------------------------------- *
- * METHODS
+ * METHODS getters
  * ---------------------------------------------------------------- */
 
 // Extrahiert Inhalte einer YAML Config und parset dies als Struktur
@@ -38,3 +38,19 @@ func AppConfigShowMetrics() bool {
 func AppConfigPerformChecks() bool {
 	return AppConfig.Options.Checks
 }
+
+/* ---------------------------------------------------------------- *
+ * METHODS setters
+ * ---------------------------------------------------------------- */
+
+func SetAppConfigFancyMode(value bool) {
+	AppConfig.Options.Display = value
+}
+
+func SetAppConfigShowMetrics(value bool) {
+	AppConfig.Options.Metrics = value
+}
+
+func SetAppConfigPerformChecks(value bool) {
+	AppConfig.Options.Checks = value
+}
diff --git a/code/golang/main.go b/code/golang/main.go
index 03e7af9..36bfa7f 100644
--- a/code/golang/main.go
+++ b/code/golang/main.go
@@ -38,6 +38,10 @@ var (
 func main() {
 	var err error
 	var arguments *types.CliArguments
+	var (
+		cmdMissing bool
+		showChecks bool
+	)
 
 	// assets festlegen
 	setup.Res = res
@@ -45,9 +49,10 @@ func main() {
 
 	// cli arguments parsen
 	arguments, err = cli.ParseCli(os.Args)
-	cmdMissing := cli.ParseCliCommandMissing(err)
+	cmdMissing = cli.ParseCliCommandMissing(err)
 
 	// initialisiere basic optionen wie Logging
+	showChecks = false
 	if err == nil {
 		quiet := arguments.QuietModeOn()
 		if arguments.InteractiveMode() {
@@ -56,16 +61,12 @@ func main() {
 		logging.SetQuietMode(quiet)
 		logging.SetDebugMode(arguments.DebugModeOn())
 		logging.SetAnsiMode(arguments.ShowColour())
+		showChecks = arguments.ShowChecks()
 	}
 
 	// app config (intern) intialisieren
-	if err == nil {
-		err = setup.AppConfigInitialise()
-	}
-
-	if err == nil {
-		setup.AppConfig.Options.Checks = arguments.ShowChecks()
-	}
+	err = setup.AppConfigInitialise()
+	setup.SetAppConfigPerformChecks(showChecks)
 
 	if err == nil {
 		if arguments.ModeVersion.Happened() {