St. Clair Shores can be found here
Macomb County, Michigan (MI) Scanner Frequencies and Radio Frequency Reference
Grosse Point here
Scanner Frequencies: Eastern Wayne County Mutual Aid Trunking System, Grosse Point Farms, Michigan
Keep in mind that St. Clair shores operates on the Michigan Public Safety Communications System (MPSCS) which means you need a APCO-25 digital scanner in order to listen to those comms.