Is it on your side? It looks like your already very low crime rate had been going down steadily for many years before these scanners were installed: https://data.marincounty.org/Public-Safety/County-Sheriff-Re.... What do you think changed in the last few months that made the scanners necessary?
I'm sure I'm missing some local context, but from an outsider perspective it looks like there's no evidence the cameras are helpful in reducing crime and pretty strong evidence that they will be used to commit crimes: https://www.aclunc.org/our-work/legal-docket/lagleva-v-doyle....