...RESPONSIBILITY Government should generally avoid imposition of retroactive liability: that legislation which creates a new obligation, imposes a new duty, or attaches a new disability, for past activities. Retroactive criminal legislation is barred by our constitution. Retroactive civil...

...requirements;7 § 13.02 0 1 Keeney v. Department of Justice, 139 P.2d 814 (Mont. 2006) ("retroactive" means a statute which takes away or impairs vested rights,...attaches a new disability, in respect to transactions already past). 1 Blanche Road Corp. v. Bensalem Township, 57 F.3d 253 (3d Cir. 1995); Blue Jeans Equities...

...defined a law as retroactive where it "takes away or impairs vested rights acquired under existing law, or creates a new obligation, imposes a new duty, or...respect to transactions or considerations already past." (The vexing problem of when a right is "vested" will be considered later.)11 Almost from the moment...

...effective date that precedes its enactment. Justice Story expanded the concept of retroactivity to include "every statute [ ] which takes away or impairs vested rights acquired under existing laws ... or attaches a new disability in respect to transactions or considerations already past."127 According...

...avoid passing laws which provide for the imposition of retroactive liability: that legislation which creates a new obligation, imposes a new duty, or attaches a new disability for past activities. Retroactive criminal legislation is barred by our Constitution. Retroactive civil...

...States law, and in case of inconsistency the later in time prevails." Ibid, at sec. 115, cmt. a. 29 " '[E]very statute, which takes away or impairs vested...considerations already past, must be deemed retrospective.' " Landgrafv. USI Film Products, 511 US 244, 269 (1994) (quoting Society for Propagation of the Gospel...

...retrospective law is a law that takes away or impairs vested rights acquired under existing laws, or that creates a new obligation, imposes a new duty, or attaches...respect to transactions or considerations already past. State v. Vashaw (1973) 113 NH 636. In the civil sphere, the rule has evolved over time to mean that...

...character of past transactions,61 that the rule in question prevails.54 Every statute, it has been said, which takes away or impairs vested rights acquired under existing laws, or creates a new obligation, or imposes a new duty, or attaches a new disability in respect of transactions or considerations already...