Re your Query

you can write to home office to send you the passport explain the reason why du u wnt the passport and tell them you will send them passport back when they reach there decision

 

If he has any other ID on him for example driving licence, that should also be sufficient as per law but Sigmai advised, taking the passport back would be more convenient because not all the employers have a clue about the immigration rules.

Good luck

 

Also, employers or potential employers can call the ukba employer helpline to confirm your husband’s right to work under the COA. Good luck!