1) top-down approach: This is heavily used in the US and originates from the FBI. This approach "starts with the big picture and then fills in the details" (Deb Gajic 2017).2) bottom-up approach: is a British method which involves a more scientific and data-reliant technique where crime statistics are used to make predictions of likely suspects.
1) top-down approach: This is heavily used in the US and originates from the FBI. This approach "starts with the big picture and then fills in the details" (Deb Gajic 2017). 2) bottom-up approach: is a British method which involves a more scientific and data-reliant technique where crime statistics are used to make predictions of likely suspects.
U can check this link below to know more on this
https://soapboxie.com/government/Two-Types-of-Offender-Profiling