I once went to one, and they send me to a bureau which photocopied at ksh 15. The catch is that they advised me to pay by money order at kshs. 150, totalling to about kshs. 165.
The money order is then cancelled and the post master and the police station share the spoils.Been an 'industry insider' in the busy town, I got the abstract photocopied for 5 bob , without need for a money order.
Went back to the police station, met a different guy who asked to see the money order, and I asked "what moneyorder?" . Anyway, he processed the abstract since i had it,
The anti-climax was that the lost documents were trapped between my bed sheet and mattress for one week that the bed was not 'fully formatted'.
If you appear with the abstract and dont mention you had been there before, they assume you are aware of the process and avoid taking you round in circles