I would have expected far more rigorous vetting than that. Not sure how one would do that - Doctor's report, perhaps?
Negative vetting is checking for things such as criminal convictions, arrest records, sex offender registers, credit checks perhaps; anything which is likely to be recorded.
Positive vetting, which I’d assume, senior police officers have, mean things like checking passport entries, family connections, employment history, group memberships and such, as well as contacting friends, family and employees and asking them about character and behaviour. It’s quite intrusive, they’ll ask your friends if they know if you take drugs or misuse alcohol, for example.
This is the vetting procedure for entry into an Australian police force:
“After successful completion of the Victoria Police Entrance Examination, Recruiting Services will conduct a preliminary check of your previous history to determine your eligibility and suitability for the role.
To facilitate the background checks you will be sent a document pack that we require you to complete in detail. These documents require you to tell us about various aspects of your background including but not limited to; employment, family associations, education and travel. Your accuracy in completing this document package is an assessable component of the recruitment process.
Missing or incomplete information will result in your application being delayed.
Your previous history will be assessed (traffic, criminal, employment, etc.) at this stage and throughout the entire selection process.”
This is the COP for vetting for UK police forces. It’s long, but if you’re interested in the procedure it’s all there.
library.college.police.uk/docs/appref/Vetting-APPpdf.pdf
The think about rigorous vetting is that it’s resource intensive - both in terms of time and staff.
If you have a tension between governments unwilling to spend money on essential services, and a public demanding more frontline police, something has to give. Whenever governments cut essential services, they always claim that the financial impact won’t be on frontline staff.
What everyone conveniently forgets is that back-office staff, (such as security vetting services), are an essential component of police and emergency agencies.
I’d suspect that police forces are prioritising getting uniforms on the ground at the expense of vetting - with predictable results.