Evidence of ip address of fraudulent / false email

First get facts through cyber experts, as activity record can not be destroyed in hard disk.  Then contact advocate and file police complaint for confiscating hard disk .  There must be a vistors' record or register as to who visited and traded on that day, if not allowing such use is not proper.  On the basis of the visitor's list, you can make inquiries.  I am afraid that a common man can not do all this.  If the amount is not substantial just forget it like a loss in speculation.

They are not providing Hard disk that is available with them. Already matter is being examined by Police cyber crime and it is established that fraud mails  were sent from official Company’s IP address only. The entire life savings have been fraudulently looted in the scam.

  I am not able to understand how a personal company can give a public acess to their web? If Banks also state same thing what will be the security and safety of  invesors? Can a Bank / Securities Broker be allowed  (on the pretext of giving Public acess ) to use such evasive defence  to send Fraud emails?