This crime analysis course is one of many great resources provided by Andrew Wheeler, perfect for those new to or moving into tactical crime analysis roles with limited technical training. See also Andrew's resource site here: https://andrewpwheeler.com/

Great series of videos on how to perform various crime analysis tasks in Excel, including identifying spatial-temporal patterns and crime concentrations at differing units of analysis. Subscribe for more at the Crime & Security Data Analytics Lab (CASDAL), content created by Grant Dwarve, Associate Director of the CASDAL. 

16 courses on crime mapping in R created by Dr Matt Ashby (Lecturer in Security and Crime Science, UCL). Covers a range of topics suitable for crime and intelligence analysis including hotspot maps, risky facilities and spatial-temporal patterns. See more on crimemapping package. See also Matt's resource site here http://lesscrime.info/ 

11 webinar courses on crime mapping in ArcGIS Pro created by Professor Grant Dwarve (University of Arkansas). Covers all necessary techniques for crime pattern analysis. See series on the Crime & Security Data Analytics Lab YouTube page. See also a recently published book Modern Policing Using ArcGIS Pro. Of interest to those moving to ArcGIS or an agency where this is the predominant GIS software.