Positive Kastle-Meyer (KM) or Hemastix^® (or other preliminary color test(s))*

• Blood was indicated on ___.
• Analysis of ___ gave presumptive chemical indications for the presence of blood.

Positive KM or Hemastix^®
AND
Positive Takayama(Hemochromogen)

• Blood was identified on ____.

Positive KM or Hemastix^®
AND
Positive Takayama (Hemochromogen)
AND
Species testing (human antiserum) or ABAcard HemaTrace^® Test

• Blood was identified on ____, and human antigen (or hemoglobin) activity was detected.
• Analysis of ___ gave presumptive chemical indications for the presence of blood. Analysis of __ indicates the presence of human proteins.

Positive KM or Hemastix^®
AND
Positive Takayama (Hemochromogen)
AND
Negative Species testing (human antiserum)

or ABAcard HemaTrace^® Test

• Blood was identified on ___, however no human antigen (or hemoglobin) activity was detected.
• Analysis of ___ gave presumptive chemical indications for the presence of blood. Analysis of __ failed to indicate the presence of human proteins.

Positive KM or Hemastix^®
AND
Negative Takayama (Hemochromogen)

• Preliminary tests indicated blood on ________, but further tests could not confirm the identity of blood.

Negative Visual

• No stains consistent with blood were observes on ___.

Negative KM or Hemastix^®

• No blood was detected on ___.
• Analysis of ___ failed to give presumptive chemical indications for the presence of blood.

*There are numerous preliminary color tests that can be used in forensic testing methods. The most common are noted, however other preliminary color tests could be reported similarly.