(1)  Subject to subsection (2) , upon an indictment for persistent sexual abuse of a child [ or young person] or maintaining a sexual relationship with a young person under the age of 17 years the accused person may be convicted of one or more of the following crimes:

(a) .  .  .  .  .  .  .  .  

(b) .  .  .  .  .  .  .  .  

(c) penetrative sexual abuse of a child [ or young person];

(ca) penetrative sexual abuse of a child [ or young person] by a person in a position of authority;

(d) penetrative sexual abuse of a person with a mental impairment;

(e) indecent act with or directed at a child [ or young person];

(ea) indecent act with or directed at a child [ or young person] by a person in a position of authority;

(eb) indecent assault of child [ or young person] by a person in a position of authority;

(f) indecent assault;

(g) .  .  .  .  .  .  .  .  

(h) incest;

(i) rape.

(2)  The accused person may only be convicted of a crime specified in subsection (1) if the trial judge is satisfied on the evidence adduced at trial that the accused person was capable of being tried on indictment for that crime.