Based on this article
"Does the TSA really care about your customer experience?"

There seems to be a way for individuals to file complaints that may lead to improvement.

The author states that within 24 hours of filing a complaint she was asked for more detail. She submitted more information. She received a 3rd request from TSA asking for specific detail. Exact time, date, location, physical description.

I would suggest then that if you wish to file a complaint with TSA,

You gather the following information:

*Date of incident
*Time of incident
*Location (Terminal, Checkpoint, Screening Lane, TDC, AIT, xray, etc. as applicable.)
*Detailed description of yourself the day of incident - e.g. type and color of clothes, shoe color, bag color, OR same description of the person who might be complaining for.

Name of officer (if known)
Name of Supervisor (if known)