if you mean adding 2 layers to a single map, then... that is not possible with the native map included in Qlik Sense. It has a limitation of a single layer (points or area).
If you want to add more layers to a single maps, or doing geographic analytics then I'll recommend GeoAnalytics which is a set of Qlik tools (extensions, connectors, geocalculation engine), but you need an additional license in order to use it.
A workaround without having to purchase GeoAnalytics license could be to create 2 separate maps each one with the different layers you need to display (Crime geolocation & CCTV),
hope this helps,