Forensic evidence found in lodging-house, according to criminal (9)
I believe the answer is:
kidnapper
'to criminal' is the definition.
(kidnapper is a kind of criminal)
'forensic evidence found in lodging-house according' is the wordplay.
'forensic evidence' becomes 'dna' (I've seen this in another clue).
'found in' indicates putting letters inside.
'lodging-house' becomes 'kip' (I am not sure about this - if you are sure you should believe this answer much more).
'according' becomes 'per' (I've seen this in other clues).
'dna' placed into 'kip' is 'kidnap'.
'kidnap'+'per'='KIDNAPPER'
Can you help me to learn more?
(Other definitions for kidnapper that I've seen before include "serious offender" , "One wrongly takes" , "one to get child removed?" , "Ransom demander" , "Paris, for example" .)