UJI 13-2004. Witness impeached.

A witness may be discredited or impeached by contradictory evidence or inconsistent conduct. [or by evidence that at other times the witness has made material statements, under oath or otherwise, which are inconsistent with the present testimony of the witness.] [or by evidence that the witness has been convicted of a crime.] [or by evidence that the general reputation of the witness for truth, honesty or integrity is bad.] [or by specific acts of wrongdoing of the witness.] If you believe that any witness has been impeached or discredited, it is your exclusive province to give the testimony of that witness only such credit as you may think it deserves.