You may have a scenario to unlock an Intune device (old or current) that's been Bit locked. An example scenario could be in the event of a theft or security incident and the machine now needs to be recovered for use.
Typical screen showing a device that's been Bit locked:

Coreview Method
1. Log into Coreview Portal - https://app.coreview.com/
2. Select Reports > Devices > BitLocker Keys

Intune Portal Method
To locate and retrieve the BitLocker key, follow these steps as an Intune admin.
- Navigate to Intune Management
- Click on devices
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Locate your device-by-device name or serial number
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Click on ‘Recovery Keys’ down the left-hand side
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Click ‘show recovery key’
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Enter the key on the device to unlock
