Get Locking Processes in Powershell

Function Get-LockingProcesses()
{
    [cmdletbinding()]
    Param(
     [Parameter(Position=0,Mandatory=$True,
     HelpMessage="What is the path or filename? You can enter a partial name without wildcards")]
     [Alias("name")]
     [ValidateNotNullorEmpty()]
     [string]$Path
    )

    #define the path to Handle.exe, uses the PSScriptRoot variable to get the current path of the executing code
    $handleUtilityFilePath = "$PSScriptRoot\handle.exe"

    #Ensure the file is present
    If (Test-Path -Path $handleUtilityFilePath -PathType Leaf)
    {
        #Arguments to handle specifying to accept license and search for usernames
        $data = &$handleUtilityFilePath /accepteula $path -u

        #Define regex including capture groups for each column we are interested in, throw away the code before the path
        [string]$matchPattern = '^(?<Name>\w+\.\w+)\s+pid:\s+(?<PID>\b(\d+)\b)\s+type:\s+(?<Type>\w+)\s+(?<Username>\S+)\s+\w+:\s+(?<Path>\S+)$'

        $lockingProcesses = @()
        #Iterate ove the lines in the output of handle and try to match each one usign the reg ex
        foreach ($line in $data)
        {
            $myMatch = [RegEx]::Match($line, $matchPattern)
            if ($myMatch.Value)
            {
                #Match found so add a cusom object using the capture groups to our array
                $lockingProcesses += [PSCustomObject] @{
                    FullName = $myMatch.groups["Name"].value
                    Name = $myMatch.groups["Name"].value.split(".")[0]
                    ID = $myMatch.groups["PID"].value
                    Type = $myMatch.groups["Type"].value
                    Username = $myMatch.groups["Username"].value
                    Path = $myMatch.groups["Path"].value
                    CommandLine = (Get-WmiObject Win32_Process -Filter "ProcessId = $($myMatch.groups["PID"].value)").CommandLine #Include the command line of the process incase of multiple entries or generic process names
                }
            }
        }

        if ($lockingProcesses.Count -eq 0)
        {
            Write-Warning "No matching handles found"
        }

        #Remove duplicate entries
        $lockingProcesses = $lockingProcesses | Select-Object -Unique

        return ,[array]$lockingProcesses  #unravel when sending pack to ensure it is kept as an array
    }
    else
    {
        Throw "Cannot find required utility ""handle.exe"" at path ""$handleUtilityFilePath"""
    }
} #end function