Hus/Wife on Lease, Physical Abuse - Can I change the lock on one of the two?

[Daniel Villagra]

Hey BP, 

Suppose there are two individuals on a lease; one was physically abused (not reported to the Police), and the one who was assaulted asked to change the lock on the front door.  Can I legally change the lock and not give the other person (at fault) a key?

Any advice or tips here are welcome. I'm reading through my lease right now but I want to see what anyone else in this situation has done to be protected legally / do the right thing.

Thanks!