Is a police job can be transferable to son

No Govt job is transferable as inheritance.

However, in case of death/invalidment of employee the dependent can be considered for compassionate appointment and there is no guarantee of his appointment because such appointments are :-

1. for Gp-C&D posts only.
2. out of 5% of the Direct recruitment quota in Gp-C&D posts.
3. this 5% is further divided amongst SC/ST/OBC/Gen.
4. the candidates are placed in order of merit as per indignance or the family without any regard to date of death.
5. job so offered is without any reference to the qualification of the candidate.
6. at times job offered is too menial and the candidate at times due to higher qualification or sometimes due to being of higher cast status ()or due to some other relevant/irralevent factor) do no join.  In such case the offer is closed and no other alternative job is offered.

Now coming to second question.  candidate accused of criminal case will not be entitled to join any post. 

Further in 498a generally whole family is accsued, whther pralysed employee is also accused?

repeated

https://www.lawyersclubindia.com/forum/modify_message.asp?msg_id=522342

further as the son is already employed there is absolutely no scope of his being considered for compassionate job.

Transfer of Jobs is opposed to public policy.

No such transfer can be claimed as a right.  The father may approach his office with an application on grounds of his health opting VRS and seeking an employment in lieu for his son on compassionate grounds, it will depend on the discretion of the competent authority to decide.

As the son is.married.and living separately, the daughter can apply compassionate appointment on the ground of medical invalidation of fater.It is permissible. Contact authorities.