My opinion it is necessary to gather the evidence as much as possible for taking legal action. If you will catch the theft tomorrow, the act should have the police so to make the case stronger.
To take legal action, we can report to the Police on the ground of offence of theft then they will forward our case to the prosecutor to file to the Court which depends on the weight of evidence. Reporting to the police is required to have the power of attorney issued by the company to do this. I assume that K. Korchor is a representative to report to the police, so could you tell him to send a copy of his I.D. card to me as well.
If there is anything else you need to discuss, let's talk on Monday in the morning or send email to me.