How to Determine if Android Device has Policy Enforcement Feature

public static final String FEATURE_DEVICE_ADMIN was added in API level 19
Feature for getSystemAvailableFeatures() and hasSystemFeature(String).
The device supports device policy enforcement via device admins.
Constant Value: "android.software.device_admin"

1. Get a PackageManager Instance and save to myPackageManager.

2. Create a Boolean Variable named bolPESupported

3. Set the Minimum and Target SDK version  to 19 or greater. 

4. In the onCreate method, add the below code. This will return the policy enforcement ability to a boolean named bolPESupported. It will then display a toast displaying the policy enforcement ability on the device to the user.

bolPESupported = myPackageManager.hasSystemFeature(PackageManager.FEATURE_DEVICE_ADMIN);
if (bolPESupported) {
Toast.makeText(this, "Device has Policy Enforcement Capability", Toast.LENGTH_LONG).show();
} else {
Toast.makeText(this, "No Policy Enforcement capability!", Toast.LENGTH_LONG).show();
}

5. Compile and run!

Resources:
http://developer.android.com/reference/android/content/pm/PackageManager.html#FEATURE_DEVICE_ADMIN