Few incorrect (imo) posts in this thread regarding what to do if having lost pp and also on overstay.
Step 1. You make a police report.
Correct.
Can you make a police report while on overstay. Answer Yes.
Will your embassy require a police report to even start process to provide emergency travel document?
Absolutely.
The following is copy/paste from AI reply.
Not convinced about point 5.
Suggest with the EC and flight to Malaysia and 20k head to airport.
"If you lose your Malaysian passport while overstaying in Thailand, you should:
File a police report and get a copy
Contact the Malaysian Embassy in Bangkok to:
Inform them of the loss
Apply for a verification of identity
Bring the following documents:
The police report, translated into English
Proof of identity, such as an IC or driving license
Two passport-sized photographs
Undergo an interview with a Consular Officer to verify your nationality
If you meet all the requirements, you will receive an Emergency Certificate (EC) to travel back to Malaysia
Bring the EC to the Immigration Office for endorsement"