WhatsApp Call Investigation | Data request from WhatsApp for Police and Government

WhatsApp number and call investigation is facilitated through their portal - commonly referred to as "LERS Portal"
1. Go to https://www.whatsapp.com/records/login?lang=en_US Or simply google "WhatsApp LERS Portal"
2. Tick on I am authorized law enforcement agent or government employee
3. Put official government Email ID
4. A temporary Login link will be sent to the Email ID - Check for all folders - spam, notification etc. for the link
5. Click on the mail received from "records@records.whatsapp.com"

6. Preservation Request : (This will not require any legal notice or letter)
Preservation allows to save the metadata or information related to a particular WhatsApp account on that particular time or date. This is useful when you don’t have permission at hand and don’t want suspect data to be altered or deleted.

Put the whatsapp account number which you want to preserve and click submit, the data will be preserved in WhatsApp Law Enforcement Portal. A small message will appear with case number:
Preservation Request
Please complete all fields below to request preservation of account records. We will take steps to preserve account records in connection with official criminal investigations for 90 days pending our receipt of formal legal process. Additional information can be found in the WhatsApp Law Enforcement Guidelines.
Preservation Request submitted successfully.
Your case number is xxxxxxxxxx
7. Data Request : Click on Records Request and fill in the requisite information

If you need information related to WhatsApp user, select time and paste the phone number with country code
Under Legal Process, select your country’s code – Ex. If it is India, it will be Bharatiya Nagrik Suraksha Sanhita, 2023
Important: In the documentation part, put a justification about ‘why’ you need the information. Clearer the justification – faster the response.

You can even attach a signed and stamped data request notice, to make things faster.
Check on the “I Attest that I am a law enforcement agent or government employee authorized to request account records” and click submit.
What data will you Get?
The most vital data would be last seen IP address from WhatsApp. There are much more that WhatsApp gives based on your country's law. (Read
Expect the reply in hours to days - based on strength of your country's Law : In India, it is maximum 72 Hours under IT Rules.