Road/traffic blocks/stops.

[Nyxolotl]

I'm not sure if this happens already but it would be cool to see road/traffic blocks/stops conducted by the police on high/freeways, I feel like this would create more interaction between factions and also encourage 'good behaviour' as well as give the chance for officers to find stolen vehicles etc. 

Then again I can see how people could find this a nuisance, but it would be cool!

(Also this was probably already brought up by someone but an FBI regiment would be cool for more nuanced police work focused more on investigation etc) 

[Waryerz]

I know that this definitely happens sometimes, but not too often.  Perhaps you could go about asking the Law Enforcement Agencies In-Character to conduct these more often.

[Jett_J]

Like someone already replied, the traffic check points do happen but not too often. 

They are definitely a fun experience and make the RP experience more immersive.