§1702.381 - A person who contracts with or employs a person who is required to hold a license, registration, endorsement, or security officer commission under this chapter knowing that the person does not hold the required license, registration, endorsement, or commission or who otherwise, at the time of contract or employment, is in violation of this chapter may be assessed a civil penalty to be paid to the state in an amount not to exceed $10,000 for each violation.
That is 10 grand for each violation.
Don't risk an outrageous fine. You should always hire a licensed investigator.
Whatever you do - stay safe!