I am sorry of these questions hurt you but you have not come to this forum for goodie goodie talk.
I am sure you have not come to this forum for emotional talks.
These questions are emerging out of your descripttion only.
You have to be honest to yourself that if the police acts on the pressure from investors then it is not the company who is in their hand it is you who is in their hand and you will have to face these questions in THANA. You seem to be blind to the truth that :-
(i) It is you (not Mr Khan) who approached investors.
(ii) It is you (not Mr Khan) who caused investment.
(iii) It is you (not Mr Khan) who employed staff for this job.
(iv) It is you (not Mr Khan) who has to prove that you are not hand-in-glove.
Life runs as per norms existing and not the way you or me may want. Your belief of being honest person will not help (even if personally I agree) as it is not apparent on record.
This is a legal forum and you are being told what is the worst further you could face.