Question seems hypothetical, so do answer.
1, if you people (husband and wife) living in parents residence, she can seek re entry, if your parents refuses to accomadate her, then the onus will be on you to provide her residence failing which you are liable to be prosecuted under DOMESTIC VIOLENCE ACT. For injunction it has to be seperate suit and it cannot be filed in family court. as your mother is not party to proceedings.
2,Every one has the right to file criminal complaint against anyone, but how far they will succeed is million dollar question.Filing criminal complaint may be counter productive.
With this i am signing off, further solicitation on this will be strictly commercial.