The Sindh police have just publicized a number you can text message to report crime or make complaints.
On its Facebook page, the Sindh police posted a useful image for its 9110 service.
You can message your complaints about FIRs that have not been filed, a wrongful arrest or a cop demanding a bribe here.
On Sept 16, Prime Minister Imran Khan spoke of how crime had spiked in Karachi. Korangi just got its first 100-man special street crime squad. Sindh also got a new IG recently. Dr Kaleem Imam said that eliminating street crime was a top priority.
Reports of street crime have started to come in again after a relatively calmer two years or so since the Karachi operation. The Sindh police website is not updated on statistics (http://www.sindhpolice.gov.pk).