Chief, one simple electronic test that departments find beneficial is the "Step One Survey". The candidate completes the test on line and it provides some insight to their personal integrity, substance abuse, reliability and work ethic. It also will provide interview questions that are legally compliant to ask because it is generated from their responses. It is a validated indicator instrument and is rather inexpensive. Please contact me if you need more info or you are interested in using it. Thanks and take care.
https://www.profilesincorporated.com/wp-content/uploads/2014/09/SOS-Partner.pdf