Interesting issue! Before I respond, I feel it's only fair that you share all relevant information of the incident with the members together. It is not good to provide information piece by piece.
Having said this, my first response is: what is the job he is employed for? I understand that he is employed at a much higher level, and therefore this accident, especially when he is acquitted, should not come in his way. But now I want to know if the acquittal was by way of "honorable discharge," i.e., clean acquittal, or acquittal for want of evidence and the prosecution's inability to prove the charges! Each of these situations could draw a different response from a potential/present employer.
However, responding to (Cite Contribution)'s observations (and I agree with her entirely), in short, the point that the new employer MUST understand is, "an accused is not a criminal," or in India's jurisprudence, "everyone is innocent unless proven guilty!" In fact, this principle has been taken so far as the judiciary to be guided by the dictum, "In all cases, the accused must get the benefit of doubt and the charge has to be positively proven."
Now, a private sector employer is not bound by these jurisprudence principles and could as well take a view that if any of its employees had faced a criminal trial, then notwithstanding his acquittal, the company shall not employ such a candidate, and legally, we cannot find fault with such a policy from a private sector employer.
I would wish the concerned gentleman the best!
Regards,
Samvedan