Then, without further information, I don't see how anyone can help you. Do torts apply to public agencies/public servants? Yes. The issue is likely to be not so much as 'what torts apply?' as it is 'how protected are they and what defences do they have?' I'd say the answer to that question is 'a lot'.
In very general terms:
1. Look at the act governing the 'administrative decision' or function. Consider what powers the agency is granted (that may give a clue to where they may have viable defences), whether there are any offences for breach (which might displace a common law remedy), and whether any immunities/defences are granted.
2. Consider the type of tort you suspect from the facts.
3. Look at the elements of that tort which you would be required to prove.
4. Look at what defences the agency might have.