I do not accept people with VAC status: "Ban(s) on record" or "Currently on trade probation". So don't add me if you have it.
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To report a cheater:
1.Go to the user's Steam Community profile
2.Use the "Report Violation" button in the top right of the page
3.Select "Suspected Cheater", add a description (include the game and the name of the cheat if known), and hit "Submit"

Note:
VAC does not ban based on reports. Such data is only used for tracking and statistics purposes.
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If you encounter a scammer:
1. Go to the user's Steam Community profile.
2. Click the 'More' drop down located at the top right of the page
3. Select 'Report Violation' and choose 'Attempted Trade Scam' add an explanation of what happened, then hit "Submit Report".

All complaints are reviewed by the Steam Community team.

Note:
If you have been scammed, Steam Support will NOT restore any items/gifts that have been traded. It is your responsibility to ensure you are receiving the correct items/gifts at the time of accepting the trade.
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Overwatch Investigator:

The Overwatch lets the CS:GO community regulate itself by allowing qualified and experienced members of the community (‘investigators‘) to review reports of disruptive behavior, determine whether those reports are valid, and apply temporary bans if appropriate.

If the investigators collectively agree that an offense has occurred, a ban will be issued. The ban duration will depend on the severity of the offense and the suspect’s history of convictions, if any.

Investigators are selected based on their CS:GO activity (competitive wins, account age, hours played, Skill Group, low report count, etc.) and, if applicable, prior Overwatch participation level and score (a function of their accuracy as an investigator).

A higher-scoring investigator’s verdict will carry more weight than a lower-scoring investigator.
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