The "PPG" hand weapons used by Babylon 5 security seem to result in an inconveniently high body count.
On several occasions defensive use of a PPG results in the death of an assailant, closing off an important line of inquiry and arguably an unnecessary loss of life.
Assuming Garibaldi prefers captives to corpses and has trained his department as well as he claims we must ask if the tool is at fault.
Is there a specific reason in-canon why civil security forces are provided a weapon with such a low survivability?
Examples updated as i find them:
S2-Ep14 "There All The Honor Lies" 02:30 - Sheridan is set-up and defends himself against a Minbari with a standard PPG. Although the weapon is left for him as part of the setup it appears to be a standard PPG, familiar to Sheridan and killing the Minbari leaves him in considerable jeopardy
S3-Ep12 "Sic Transit Vir" 22:25 - Despite having the upper hand Zack Allan one-shots a Narn armed with a knife leaving the Narn's motive a mystery.
Perhaps Unit 5 of the B5 Security Manual could shed some light if anyone has a copy?