CA Gov't Code Section 845.8

Neither a public entity nor a public employee is liable for:

(a)

Any injury resulting from determining whether to parole or release a prisoner or from determining the terms and conditions of his parole or release or from determining whether to revoke his parole or release.

(b)

Any injury caused by:

(1)

An escaping or escaped prisoner;

(2)

An escaping or escaped arrested person; or

(3)

A person resisting arrest.