Dorrington is a talented investigator but he's no gentleman amateur. He intends to make money. A lot of money. To do this by strictly legal means would require years of hard work. Dorrington has no intention of waiting, and fortunately he is entirely untroubled by pangs of conscience. When he takes on a case he looks for an angle that will allow him to enrich himself. If this happen to be at the expense of the client Dorrington is unlikely to lose any sleep over the matter. If it results in the total ruin of the client this i a matter of no concern at all to Dorrington. If he can't find an opening for shady dealing then he will investigate the case to the best of his ability and endeavour to produce a favourable result for his client. After all, in order to keep the business going he needs at last some satisfied customers. It is necessary to build up a reputation as a legitimate detective if he is to get the opportunities he craves for his less legitimate activities. Dorrington gets away with all this because he is a man of immense charm. He is also an extraordinarily good liar.