
																
																	Critical review and trends in forensic investigations of crossing ink lines
																
																
																
															Keywords: Forensic chemistry; Questioned documents; Ink analysis; Crossing inks; Intersecting lines; Pen ink; AFM; Atomic Force Microscopy; ALS; Alternating Least Squares; ANOVA; Analysis of Variance; ATR-FTIR; Attenuated Total Reflectance-Fourier Transform Infra