The dog is said to be a Jack Russell
The excited pet dog of a German man on the run from the law led police to his master's hiding place in a cupboard, police in the west of the country say.
When officers called at his flat in Euskirchen, near Cologne, the door was opened by an acquaintance of the missing man who was holding the dog.
The acquaintance said he did not know where the owner was.
But when the dog was set down, it led police to the cupboard, where it stood expectantly with its tail wagging.
Officers who opened the cupboard, which was just a metre (3ft 3in) high and 80cm (2ft 6in) wide, found the fugitive "hunched up inside".
A police spokesman did not say what offence the man was being sought in connection with but told AFP news agency it was "not a capital crime".
Neither the name of the suspect, 52, nor that of the pet was given but, according to AFP, the dog was a Jack Russell terrier.