Self Elevating Script + Execution Policy - powershell

Question

I'm trying to use the following code from th question "PowerShell: Running a command as Administrator" to not only self elevate my script to run automatically in an Administrator-level PowerShell, but also for the Administrator-level PowerShell session to be run with an ExecutionPolicy level of RemoteSigned. I'm assuming that I need to use something like -ExecutionPolicy RemoteSigned in $newProcess.Arguments but am completely lost as to if this is the case, and if it is then what the syntax do I use to create the the multiple arguments?
# Get the ID and security principal of the current user account
$myWindowsID = [System.Security.Principal.WindowsIdentity]::GetCurrent();
$myWindowsPrincipal = New-Object System.Security.Principal.WindowsPrincipal($myWindowsID);
# Get the security principal for the administrator role
$adminRole = [System.Security.Principal.WindowsBuiltInRole]::Administrator;
# Check to see if we are currently running as an administrator
if ($myWindowsPrincipal.IsInRole($adminRole)) {
# We are running as an administrator, so change the title and background colour to indicate this
$Host.UI.RawUI.WindowTitle = $myInvocation.MyCommand.Definition + "(Elevated)";
$Host.UI.RawUI.BackgroundColor = "DarkBlue";
Clear-Host;
} else {
# We are not running as an administrator, so relaunch as administrator
# Create a new process object that starts PowerShell
$newProcess = New-Object System.Diagnostics.ProcessStartInfo "PowerShell";
# Specify the current script path and name as a parameter with added scope and support for scripts with spaces in it's path
$newProcess.Arguments = "& '" + $script:MyInvocation.MyCommand.Path + "'"
# Indicate that the process should be elevated
$newProcess.Verb = "runas";
# Start the new process
[System.Diagnostics.Process]::Start($newProcess);
# Exit from the current, unelevated, process
Exit;
}
# Run your code that needs to be elevated here...
Write-Host -NoNewLine "Press any key to continue...";
$null = $Host.UI.RawUI.ReadKey("NoEcho,IncludeKeyDown");

Answer 1

$newProcess.Arguments is indeed where you add the relevant parameters. However, you may want to run the script via the parameter -File instead of using the call operator (&) in an implicit -Command parameter.
$newProcess = New-Object Diagnostics.ProcessStartInfo 'powershell.exe'
$newProcess.Arguments = '-ExecutionPolicy RemoteSigned -File "' +
$script:MyInvocation.MyCommand.Path + '"'
$newProcess.Verb = 'runas'
[Diagnostics.Process]::Start($newProcess)