This paper presents a description regarding the various uses of specialised diving equipment in police practice. Particularly, these include an underwater scooter, sonar, and robot used by police officers of the Czech Police Department of Special Diving Activities and Training for their use during search and rescue operations in the Czech Republic and also during missions and training whilst in foreign countries as well. This paper offers comprehensive and (until now) unpublished information on activities of the Czech Police divers, their basic tasks and their numbers and classification within the police structure.