The Automated Case Support System (ACS), the program which Stan used to find background information on Elizabeth and Phillip, was in use well into the first decade of the twenty-first century. The system was used to track the progress of on-going cases.
Oleg pulled himself "Into the Black" refers to when a subject of surveillance team, is free of their pursuers for several seconds. Two similar concepts, "in the gap " and "in the wind", refer to a longer period of time, and outright loss of contact respectively.
A blue Volvo 740/760 Saloon is seen multiple times during the episode, both parked and in traffic. While these cars were common in the 80's the fact you repeatedly see the identical car several times highlights the fact the crew only had a finite number of period vehicles to use.
The output of a database program like ACS is known as a Computerized Criminal History, or CCH for short.