What if there was some form of Intelligence Agency that could help set up undercover or infiltration projects within not only criminal gangs but also government services to uncover people who are not performing their role fairly or correctly. This could be open to all sorts of options for work, Roleplay and story opportunities here which you can take ideas from the below thoughts:
Most Wanted List:
This is a list at the Intelligence Agency and maybe also available to public?
Basically it consists of the top 10 most wanted criminals who are currently operating, maybe the top gang leaders or very dangerous serial killers etc. Perhaps in order for them to be on this wall it requires a minimum of 2 items of information, something like a Name and also at least 1 Photo. The photo can be a previous arrest image if they have done previous time in prison, or a CCTV image if they have been spotted in shops, casino, clubs etc with CCTV in operation.
The following things below can create story lines, drama, investigation jobs, and Roleplay scenarios for the above situation:
Credit Card Tracking:
If someone is on this top 10 most wanted list, then if their card is used within a shop it blips a location of use 10 seconds after the transaction (giving criminals an equal chance to get away and also the police an idea of their accessible locations to try and locate them). The police can even go to the shops and conduct an investigation to question the staff about the person in question.
This can be avoided if the gang leaders send in foot man to do their shopping lists, or if people on the most wanted list use cash instead of card.
(encouraging criminals to use cash instead of card is very lifelike and realistic as well).
Number Plate Recognition:
Similar to above, if someone is on a most wanted list, and their car is registered to their name, what if a mechanics garage would blip up from number plate recognition through a DVLA/DMV register system. Again it should give criminals a 20 second gap to get out of the area but also provides the police with a little intelligence on locations used by the criminals and investigations or interviews can be roleplayed on scene etc.
Undercover Operations:
Maybe undercover officers could be created to infiltrate gangs to get information about their operations. Gangs can also find out who is an undercover cop if they spot the person walking in to the Intelligence Agency and they can then deal with it in their own way. (I am picturing some grim scenarios here of gang members having meetings on boats in the middle of the ocean like in the Sopranos, or perhaps on a farm next to a wood chip grinder).
But the advantages are not just for the police because of this next job role:
Internal Affairs:
Planting a person within the police force as an undercover and new character with some bull***t backstory like being "on transfer from another station" who is actually in the department to locate bad cops, which can range from police officers not responding to calls, police officers turning a blind eye to particular crimes, or perhaps the police force even has a mole within it who actually communicates with a gang behind their departments back?
(I suppose you could also investigate other chains of command too, fire departments, medical, even just general work at any job where foul play is suspected).