Legality of Recording someone in California for R. O purposes?

Can anyone tell me if there's anything that can justify my recording without criminal repercussion? I filed a restraining order on someone and they've been Harassing me and Threatening me. I caught them on my iphone voice recorder confessing to beating me up (I was assaulted by her fter an argument) and taunting me I also have recordings of the nuisance heard inside my apt coming from her apt nuisance she's done on purpose to annoy me. She is saying now I hit her and assaulted her in her own R. O filled after mine, I also have a letter of apology from her admitting to hurting me and hitting my friend because she was getting evicted, and that was her last resort to stay. I also have a dispatch report saying that the manager verified i never hit her. Can anyone please let me know if I should even bring the recordings up?

Yes you should. It may or may not be admissible, but it certainly shouldn't be an offence.