An affidavit is a written, sworn statement by an individual witnessed and signed by a Notary Public or other official person. The 'affiant' swears to the truth of the written statement. This form, a sample Application to Commence Proceedings by Affidavit and Decision by Social Worker (Welf. & Inst. Code, Section 329), can be used as an affidavit on the named topic. Adapt the model language to fit your own circumstances and sign in the presence of a Notary. Available for download now in standard format(s). USLF control no. CA-JV-210