Do the sheild spell and sheild of law spells stack you ac?

[Syriously]

Based on normal gear and casting both spells on a target.

[Lord Vukodlak]

Based on normal gear and casting both spells on a target.

The Shield of Law spell grants a Deflection bonus to AC it stacks with anything other then another deflection bonus
A Shield spell grants a shield bonus to AC it stacks with anything other then another shield bonus(such as a mundane shield)

[Syriously]

So even if the 2 spells are comming from the same staff they qould stack?

[Douglas]

So even if the 2 spells are comming from the same staff they qould stack?
Yes. The source of the spells is irrelevant, the only thing that matters is the bonus type.

[Crake]

If you're unaware of bonus types, it's worth noting that deflection is the bonus type granted by a ring of protection, so shield of law will not stack with any rings of protection anyone happens to be wearing.