▸ Court workers will never call to say you've missed jury duty, or that they are assembling jury pools and need to “prescreen” those who might be selected to serve on them. The police detectives I spoke with said they knew of no reason you would ever be called about jury service until after you had mailed back your completed questionnaire, and even then such a call would be extraordinary.
▸ Never send anyone a “commission” or “finder's fee” as a condition of receiving funds. In legitimate transactions, such fees are merely deducted from the money being paid out.
▸ Examine your credit card and bank account statements every month, keeping an eye out for unauthorized charges. Immediately challenge any items that you did not approve.