diff --git a/slides/BASS_202508/01_Install-Modules.ps1 b/slides/BASS_202508/01_Install-Modules.ps1
new file mode 100644
index 0000000..c52f861
--- /dev/null
+++ b/slides/BASS_202508/01_Install-Modules.ps1
@@ -0,0 +1,14 @@
+# Required
+Install-Module Microsoft.Graph.Authentication -Scope CurrentUser ; Import-Module Microsoft.Graph.Authentication
+
+Install-Module Pester -SkipPublisherCheck -Force -Scope CurrentUser ; Import-Module Pester
+Install-Module Maester -Scope CurrentUser ; Import-Module Maester
+
+# Optional
+#Install-Module Microsoft.Graph -Scope CurrentUser #need to long for install in demo
+Install-Module Az.Accounts -Scope CurrentUser ; Import-Module Az.Accounts
+Install-Module ExchangeOnlineManagement -Scope CurrentUser ; Import-Module ExchangeOnlineManagement
+Install-Module MicrosoftTeams -Scope CurrentUser ; Import-Module MicrosoftTeams
+
+
+Get-Module
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diff --git a/slides/BASS_202508/02_Install-MaesterTests.ps1 b/slides/BASS_202508/02_Install-MaesterTests.ps1
new file mode 100644
index 0000000..868cffb
--- /dev/null
+++ b/slides/BASS_202508/02_Install-MaesterTests.ps1
@@ -0,0 +1,21 @@
+# Get script path and set it as current location
+[string]$ScriptPath = Switch ($host.name){
+    'Visual Studio Code Host' { Split-Path $PsEditor.GetEditorContext().CurrentFile.Path;$TempPathHost = $PsEditor.GetEditorContext().CurrentFile.Path.split("\");[string]$ScriptName=$TempPathHost[($TempPathHost.Length -1)] }
+    'Windows PowerShell ISE Host' {  Split-Path -Path $psISE.CurrentFile.FullPath;[string]$ScriptName=$psISE.CurrentFile.DisplayName }
+    'ConsoleHost' { $PsScriptRoot;[string]$ScriptName=$MyInvocation.MyCommand.Name}
+}
+Set-Location $ScriptPath
+
+# Create folder and set location
+mkdir maester-tests | Out-Null
+Set-Location .\maester-tests
+
+# Create maester tests
+Install-MaesterTests
+
+# Set location to upper layer
+Set-Location .\..
+
+# Copy tests for BASS
+Copy-Item -Path (Get-ChildItem -Path .\custom_tests) -Destination .\maester-tests\Custom
+Write-Output ""
\ No newline at end of file
diff --git a/slides/BASS_202508/03_Connect-Maester.ps1 b/slides/BASS_202508/03_Connect-Maester.ps1
new file mode 100644
index 0000000..23847fb
--- /dev/null
+++ b/slides/BASS_202508/03_Connect-Maester.ps1
@@ -0,0 +1,23 @@
+# Relegated permissions
+# Connect to all Services and Consent Permissions
+Connect-Maester -Service All -Privileged
+
+# Or 
+
+Connect-Maester -Service Azure,Graph,Teams, SecurityCompliance, ExchangeOnline -Privileged
+
+# Or (without permission grants)
+
+Connect-MgGraph
+
+# Or
+
+Connect-MgGraph -Scopes DeviceManagementConfiguration.Read.All, DeviceManagementManagedDevices.Read.All, Directory.Read.All, DirectoryRecommendations.Read.All, IdentityRiskEvent.Read.All, Policy.Read.All, Policy.Read.ConditionalAccess, PrivilegedAccess.Read.AzureAD, Reports.Read.All, RoleEligibilitySchedule.Read.Directory, RoleManagement.Read.All, SecurityIdentitiesSensors.Read.All, SecurityIdentitiesHealth.Read.All, RoleEligibilitySchedule.ReadWrite.Directory, DeviceManagementConfiguration.ReadWrite.All
+
+# Other services
+Connect-AzAccount #-> needed permissions in azure
+
+# Not in demo
+Connect-ExchangeOnline #-> needed permissions in exo
+Connect-IPPSSession #-> needed permissions in exo
+Connect-MicrosoftTeams #-> needed permissions in teams
\ No newline at end of file
diff --git a/slides/BASS_202508/03_Connect-Maester_Permissions.png b/slides/BASS_202508/03_Connect-Maester_Permissions.png
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index 0000000..85cf39b
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diff --git a/slides/BASS_202508/04_Start-Maester.ps1 b/slides/BASS_202508/04_Start-Maester.ps1
new file mode 100644
index 0000000..f2edd8d
--- /dev/null
+++ b/slides/BASS_202508/04_Start-Maester.ps1
@@ -0,0 +1,12 @@
+# Run maester
+Invoke-Maester
+
+# Start specific test
+Invoke-Maester -Tag "CST.1111"
+
+# Start all custom tests
+Invoke-Maester .\maester-tests\Custom\
+
+
+
+
diff --git a/slides/BASS_202508/05_Get-Difference.ps1 b/slides/BASS_202508/05_Get-Difference.ps1
new file mode 100644
index 0000000..e0389c0
--- /dev/null
+++ b/slides/BASS_202508/05_Get-Difference.ps1
@@ -0,0 +1,21 @@
+# Get script path and set it as current location
+[string]$ScriptPath = Switch ($host.name){
+    'Visual Studio Code Host' { Split-Path $PsEditor.GetEditorContext().CurrentFile.Path;$TempPathHost = $PsEditor.GetEditorContext().CurrentFile.Path.split("\");[string]$ScriptName=$TempPathHost[($TempPathHost.Length -1)] }
+    'Windows PowerShell ISE Host' {  Split-Path -Path $psISE.CurrentFile.FullPath;[string]$ScriptName=$psISE.CurrentFile.DisplayName }
+    'ConsoleHost' { $PsScriptRoot;[string]$ScriptName=$MyInvocation.MyCommand.Name}
+}
+Set-Location $ScriptPath
+
+# Get test files sorted by creation time (newest first)
+$testFiles = Get-ChildItem .\test-results\TestResults-*.json | Sort-Object CreationTime -Descending
+
+if ($testFiles.Count -lt 2) {
+    Write-Error "At least 2 test result files are required for comparison"
+    return
+}
+
+$tests = @{
+    NewTest   = (Get-Content $testFiles[0].FullName | ConvertFrom-Json)
+    PriorTest = (Get-Content $testFiles[1].FullName | ConvertFrom-Json)
+}
+Compare-MtTestResult @tests
\ No newline at end of file
diff --git a/slides/BASS_202508/99_RemoveRequirements.ps1 b/slides/BASS_202508/99_RemoveRequirements.ps1
new file mode 100644
index 0000000..8643fb3
--- /dev/null
+++ b/slides/BASS_202508/99_RemoveRequirements.ps1
@@ -0,0 +1,21 @@
+# Uninstall Mopdules
+Uninstall-Module Pester -Force
+Uninstall-Module Maester
+Uninstall-Module Microsoft.Graph.Authentication
+Uninstall-Module Az.Accounts
+Uninstall-Module ExchangeOnlineManagement
+Uninstall-Module MicrosoftTeams
+
+# Get script path and set it as current location
+[string]$ScriptPath = Switch ($host.name){
+    'Visual Studio Code Host' { Split-Path $PsEditor.GetEditorContext().CurrentFile.Path;$TempPathHost = $PsEditor.GetEditorContext().CurrentFile.Path.split("\");[string]$ScriptName=$TempPathHost[($TempPathHost.Length -1)] }
+    'Windows PowerShell ISE Host' {  Split-Path -Path $psISE.CurrentFile.FullPath;[string]$ScriptName=$psISE.CurrentFile.DisplayName }
+    'ConsoleHost' { $PsScriptRoot;[string]$ScriptName=$MyInvocation.MyCommand.Name}
+}
+Set-Location $ScriptPath
+
+# Remove tests
+Remove-Item -Path .\maester-tests -Recurse -Force
+
+# Remove test results
+Remove-Item -Path .\test-results -Recurse -Force
\ No newline at end of file
diff --git a/slides/BASS_202508/Maester_Lukas_BASS_202508_DE.pptx b/slides/BASS_202508/Maester_Lukas_BASS_202508_DE.pptx
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diff --git a/slides/BASS_202508/Maester_Lukas_BASS_202508_EN.pptx b/slides/BASS_202508/Maester_Lukas_BASS_202508_EN.pptx
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diff --git a/slides/BASS_202508/custom_tests/ContosoConfig.Tests.ps1 b/slides/BASS_202508/custom_tests/ContosoConfig.Tests.ps1
new file mode 100644
index 0000000..5998156
--- /dev/null
+++ b/slides/BASS_202508/custom_tests/ContosoConfig.Tests.ps1
@@ -0,0 +1,14 @@
+Describe "ContosoConfig" -Tag "All","Privilege" {
+    It "CST.1111: Check approved Teams Administrator" -Tag "CST.1111" {
+
+        # Approved list of Teams Administrator
+        $approvedTeamsAdmin = @("GA-Lukas@MODERNCOMMS474864.onmicrosoft.com")
+
+        # Get all Teams Administrator
+        $AdminRole = Invoke-MtGraphRequest -RelativeUri "directoryRoles" | Where-Object { $_.displayName -eq "Teams Administrator" }
+        $roleMembers = (Invoke-MtGraphRequest -RelativeUri "directoryRoles/$($AdminRole.id)/members").userPrincipalName
+
+        # Check if the Teams Administrators are approved
+        $roleMembers | Should -BeIn $approvedTeamsAdmin
+    }
+}
\ No newline at end of file
diff --git a/slides/BASS_202508/custom_tests/ContosoConfig2.Tests.ps1 b/slides/BASS_202508/custom_tests/ContosoConfig2.Tests.ps1
new file mode 100644
index 0000000..234630b
--- /dev/null
+++ b/slides/BASS_202508/custom_tests/ContosoConfig2.Tests.ps1
@@ -0,0 +1,48 @@
+Describe "ContosoConfig2" -Tag "All","Privilege" {
+    It "CST.2222: Check approved Teams Administrator with Better description" -Tag "CST.2222" {
+
+        # Approved list of Teams Administrator
+        $approvedTeamsAdmin = @("GA-Lukas@MODERNCOMMS474864.onmicrosoft.com")
+
+        # Get all Teams Administrator
+        $AdminRole = Invoke-MtGraphRequest -RelativeUri "directoryRoles" | Where-Object { $_.displayName -eq "Teams Administrator" }
+        $roleMembers = (Invoke-MtGraphRequest -RelativeUri "directoryRoles/$($AdminRole.id)/members").userPrincipalName
+
+        try {
+            # Create detailed output
+            $approvedMembers = $roleMembers | Where-Object { $_ -in $approvedTeamsAdmin }
+            $notApprovedMembers = $roleMembers | Where-Object { $_ -notin $approvedTeamsAdmin }
+            
+            $testResultMarkdown = ""
+            
+            if ($approvedMembers.Count -gt 0) {
+                $testResultMarkdown += "**Approved Teams Administrators:**`n"
+                foreach ($member in $approvedMembers) {
+                    $testResultMarkdown += "✅ $member`n"
+                }
+                $testResultMarkdown += "`n"
+            }
+            
+            if ($notApprovedMembers.Count -gt 0) {
+                $testResultMarkdown += "**Non-approved Teams Administrators:**`n"
+                foreach ($member in $notApprovedMembers) {
+                    $testResultMarkdown += "❌ $member`n"
+                }
+                $testResultMarkdown += "`n"
+            }
+            
+            if ($roleMembers.Count -eq 0) {
+                $testResultMarkdown += "No Teams Administrators found.`n"
+            }
+            
+            # Add the detailed output first
+            Add-MtTestResultDetail -Description $testResultMarkdown
+        } catch {
+            Add-MtTestResultDetail -SkippedBecause Error -SkippedError $_
+        }   
+
+        # Check if the Teams Administrators are approved
+        # The test should fail if there are any non-approved members
+        $notApprovedMembers.Count | Should -Be 0 -Because "Test"
+    }
+}
\ No newline at end of file