my instinct is to say no.
I've never heard of such a thing and babies are born with soft bones so that they can compress during birth - in a nutshell babies are designed to be born.

pulling them about after birth could be disasterous.

mention this to your doctor/midwife and say that you don't want it done.
assuming you give birth in hospital I'm sure your doctor would say that such a thing can not be done.

I am not professional at Chiropractic care but I do know that I once worked for a man that was a Chiropractor and he so firmly believed in the practice that he did not want his wife going to a regular doctor at all for nothing. His wife did in fact get sick and needed to go to a doctor, she had a upper respiratory infection and due to her husband feeling so strongly about his practice told his wife that all she needed was to be adjusted. This was not what she needed and her cold turned into pneumonia and he still would not let her go....... to make a long story short, she almost died before he let her go to the doctor.
So my answer is NO I would not let him adjust my child, I do not hold much faith in that kind of thing, and it would be all to easy for something to happen to you newborn. I would be terrified that my baby would be paralyzed (sp) or have a broken neck.
Sorry this is so long and winded but this is the way that I feel. Good luck and go with what your mothers intuition tells you. We were given that for a good reason.
Good Luck.

My instincts say no, but I have no medical qualifications to back up my answer!

Absolutely No way.
Some people take chiropractic care to a ridiculous level. It cannot cure things. Anyone can crack anyones joints.
A babies bones are soft, they will 'adjust' on their own.
What's is your husband's opinion on this? Can he talk to your father in law?

Like the previous posters stated....babies bones were made to withstand the stress and pressures put on their bodies during birth. I personally would not risk having my child adjusted at all. And from my personal experience as soon as I started seeing a chiropractor...I had to continue because my back never felt the same. It always had to be adjusted to feel better. I wouldn't want my child to have to do that on a regular basis.

if that were true, I believe the majority of the human race would be dead.