PUBLIC Forums => Public Forums => Call For Assistance Feedback => Topic started by: Kimberly James on July 18, 2023, 08:13:01 AM

Title: Distance Determination Information Needed
Post by: Kimberly James on July 18, 2023, 08:13:01 AM

Hi All,
I am in need of some feedback and would appreciate any info you would be willing to share.


1.) Is your lab ACCREDITED via ANAB for distance determination? If yes...
2.) What measurement process do you use such as (laser, tape measure, or other)
3.) Did you run our own stats and complete the Uncertainty Budget in-house or did you hire someone?


If this is better posted as a Poll, happy to do so.


Many thanks,
Kim James
Maine State Crime Laboratory

Title: Re: Distance Determination Information Needed
Post by: Holli Worden on July 18, 2023, 08:43:56 AM

Yes (ANAB Accredited), we did uncertainty of measurement using a tape measure and completed the stats in-house.

Title: Re: Distance Determination Information Needed
Post by: Loandra Pellot-Vazquez on July 18, 2023, 08:49:19 AM

ANAB accredited, we use a laser for measurements, and the uncertainty of measurement was completed in-house.

Title: Re: Distance Determination Information Needed
Post by: Justine Kreso on July 18, 2023, 09:56:26 AM

ANAB accredited, laser, and in-house UM.  The stats aren't too difficult and you can use the same template that you do for barrel/overall length.

Title: Re: Distance Determination Information Needed
Post by: Richard Rotella on July 18, 2023, 01:51:08 PM

For SWIFS in Dallas County:

• Yes ANAB Accredited
• Leica Laser with a panel that the muzzle of the gun goes through to allow for measuring off to the side of the firearm
• U of M was done in-house

Title: Re: Distance Determination Information Needed
Post by: Julie Knapp on July 18, 2023, 02:40:37 PM

same with Richard for Colorado Bureau of Investigation.

Title: Re: Distance Determination Information Needed
Post by: Russ Karsten on July 18, 2023, 02:50:58 PM

Same as Julie for labs within the Michigan State Police.

Title: Re: Distance Determination Information Needed
Post by: Steve Ostrowski on July 18, 2023, 03:28:41 PM

We are not ANAB accredited in GSR/DD.  We chose to remove it from our scope 2 cycles ago.  However, we still perform the traditional work. 

We issue standard lab reports but on alternate letterhead without ANAB logo.  We also add this disclaimer to report verbiage:  "Please note, gunshot residue examinations are not covered under the Forensic Laboratory’s scope of accreditation."

Title: Re: Distance Determination Information Needed
Post by: Kimberly James on July 18, 2023, 03:52:12 PM

Thank you all for the replies.  Happy to see more if others are willing.


I appreciate the speedy information.


Kim

Title: Re: Distance Determination Information Needed
Post by: Dennis Lyons on July 19, 2023, 08:05:09 AM

Here in RI same as Steve

Title: Re: Distance Determination Information Needed
Post by: Emily Bagwell on July 19, 2023, 08:28:12 AM

ANAB accredited. Tape measure. MU Budget done in-house.

Title: Re: Distance Determination Information Needed
Post by: Dan Alessio on July 19, 2023, 09:35:50 AM

ANAB accredited.  Laser (Leica DISTO X3).  UM in-house.

Title: Re: Distance Determination Information Needed
Post by: Kimberly James on July 19, 2023, 12:14:37 PM

Hi Again,
If anyone would be willing to send your U of M worksheet or data sheets for the process used for determining your uncertainty for use with a laser, it would be greatly appreciated. It is a big ask[size=78%].[/size]


Before our QM signs off on our planned process she wants to see what others did. 


If you would rather not post it here, please email me. 

Kimberly.d.james@maine.gov


Thank you!